MDFCs and Cycling Lands: How Much Are They Worth?

You can write a 60-card decklist and feel okay about it without ever knowing what your top-end card actually casts at. “I have 20 lands and Murktide Regent, it’s fine.” Then you queue, miss your fourth land drop in three games in a row, and start wondering whether the four Lórien Revealed in the column over are actually worth running.

This article puts a number on it. We ran the same WASM Monte Carlo engine that powers the Mana Base Calculator across 8 deck configurations — 50,000 simulated games each, 400,000 total — with the only difference between conditions being the card under test. Hold the deck constant, swap one card in and out, and read the cast rate.

The short answer: in a 20-land UR Modern shell, four copies of Lórien Revealed lifts the turn-7 Murktide cast rate from 26.7% to 50.2%. (Turn 7 is Murktide’s natural cost — {5}{U}{U} — before any delve discount; the simulator measures the deck’s ability to make seven mana with two blue sources by then, then leaves you to estimate how often delve shaves it down to turn 5.) That is the kind of number you cannot eyeball.

The Headline Number

The single result that motivated writing this page:

Why is the swing this big? Murktide Regent costs {5}{U}{U} — 7 mana before delve. Even with a healthy graveyard discount it usually wants you on 4–5 mana and with two cards in the yard and with something to do on turns 1 through 4. The baseline 20-land deck has too many turns where it is one land short. Cycling lands and MDFCs both fix that, by different routes:

• Lórien Revealed is a sorcery you can pitch on turn 1 for 1 mana to fetch a basic Island. The fetched Island enters tapped on the next turn, but you have already converted a slow turn into a real land drop.
• Sea Gate Restoration is a 7-mana sorcery on its front face ({4}{U}{U}{U}); the back face, “Sea Gate, Reborn,” is a Land that taps for {U} and enters tapped (or untapped if you pay 3 life). You play it as a land when you are short, cast it when you flood out.

Both cards solve the same problem (mid-game flood, early-game screw) and they solve it at almost identical rates.

Cycling on a Land-Light Deck

The case for cycling gets stronger the lower your land count. We re-ran the same shell at 18 lands instead of 20:

The ratio is tight: at 20 lands the swing is +23.5pp; at 18 lands it is +23.1pp. The simulator is telling you that a Lórien Revealed is worth roughly the same number of percentage points whether you have 20 lands or 18. What changes is the baseline you are starting from.

MDFCs vs Cycling Lands: They Are Not Identical

The two mechanics look interchangeable in our headline table (49–50% Murktide rate either way). They are not. Their failure modes diverge:

The mulligan column is the one that gets ignored. The simulator counts MDFCs as lands when deciding whether to keep a 7-card hand. A hand with 1 real land and 2 MDFCs keeps; a hand with 1 real land and 2 cyclers will mulligan in our default keep rule. That is part of why MDFCs hold up across more deck configurations — they protect you from the worst opening hands, not just the worst mid-game draws.

Where Cycling Stops Mattering

Cycling does not buy you anything in a deck that already casts everything. We tested mono-green stompy at 20 lands — an exclusively Forest mana base with 8 ramp creatures and Primeval Titan as the top end:

This is the same shape as the relationship between land count and cast rate in our 99-card Commander study: every additional consistency tool has diminishing returns once the deck crosses ~95% reliability.

How to Build With Them

Practical takeaways for deckbuilding:

1. If your top-end is ≤90% castable, cyclers are the cheapest fix. They cost zero deck slots if they replace a comparable spell, and they buy you more cast-rate per inclusion than tutoring or scry would.
2. Prefer cycling lands to cycling spells when you are color-fixing. Lórien Revealed only fetches a basic Island; in a 3-color deck you may want a true cycling land that taps for the right color.
3. Use MDFCs to lower your effective land count without hurting your mulligan. 22 MDFCs + 18 real lands often plays out closer to 22 lands than to 18, because the MDFCs are usable as land drops on draws where you flood.
4. Do not stack both mechanics in one deck. They compete for the same role (smoothing land draws). Past 4 to 6 total cyclers + MDFCs, additional copies have diminishing returns.
5. Cycling triggers graveyard interactions. If your deck cares about stocking the yard (delve, escape, flashback), every cycle is double duty. If your deck does not, you only get the smoothing.

The Best Cyclers in Modern, Ranked by Cost-to-Cycle Ratio

Not every cycler is worth a slot. The two variables that determine whether a cycler earns its inclusion are cycling cost (how much mana you pay to convert it) and what it converts into (a basic of a specific colour, any basic, or just a fresh card). Below is a working tier list ordered by approximate cast-rate uplift per slot in a representative under-curve deck.

Practical rule: prefer typed cycling at {1} mana over any-basic cycling at {2}{C}. Lórien Revealed and Sunbaked Canyon cost 1 mana to convert; Krosan Tusker costs 3. Over a representative game you might cycle once or twice, so the Krosan tax is meaningful. Typed cycling also means you know exactly which colour you fetch, which matters in 3-colour shells where balance is a real constraint.

When Cycling Becomes a Dead Card

Cycling has four failure modes that the simulator does not capture but real games do:

1. Graveyard hate. Rest in Peace, Leyline of the Void, and Soulguide Lantern remove cards from your graveyard or replace yard placement with exile. The cycling activation still resolves and you still get the fetched card, but any downstream graveyard synergies (delve, escape, flashback) are dead. In a Murktide deck this is worse than it sounds — cycling Lórien helps you cast Murktide on time but feeds zero delve fuel.
2. Counters on the activation. Cycling is an activated ability (CR 702.32a), not a spell. The usual blue counter package misses it: Counterspell, Pyroblast, and Red Elemental Blast all read “counter target spell,” so none of them touch a cycling activation. The narrow effects that do are Stifle, Trickbind, and Voidslime — ability counters, not spell counters. They are not maindeck staples in any current Modern shell, but in a sideboarded game where someone reads your list and brings them in, you spend the mana, lose the card, and get nothing.
3. Blood Moon-style land hosers (only hit land cyclers). Blood Moon reads “Nonbasic lands are Mountains.” Sunbaked Canyon and the rest of the horizon-land cycle are nonbasic lands — under Blood Moon they lose their draw-a-card ability entirely and are just Mountains. Spell-form cyclers like Lórien Revealed are unaffected (they activate from hand, where Blood Moon does not reach), and the basic Island Lórien fetches is a basic land that Blood Moon also does not reach. Two notes that get the rules wrong constantly: Trinisphere only taxes spells, not activated abilities, so it does not affect cycling. Cursed Totem only shuts off activated abilities of creature permanents; cycling functions only while the card is in hand (CR 702.32b), so even Krosan Tusker (a creature card) cycles fine through Cursed Totem.
4. Drawing the cycler too late. A cycler in your opening hand fixes mana on turn 1 or 2. A cycler drawn off the top on turn 6, after you have already cast your top-end and missed land drops two turns ago, does almost nothing. The simulator measures “does the cycle help me cast Murktide on turn 7?” cleanly. It does not measure “Murktide stranded in hand for two turns because I drew Lórien too late.” Hypergeometric math sets the floor: with 4 copies in a 60-card deck, the probability of seeing at least one cycler is 40.0% in an opening 7 and 48.8% by the end of turn 3 on the play. Honest framing — the headline cast-rate uplift only applies in the games where the cycler actually shows up in time.

None of these are reasons to skip cyclers. They are reasons to keep the count modest (4–6 total) rather than maxing every cycler in your colours, and to avoid pinning your gameplan on the cycler being available on a specific turn.

Cycling vs Looting vs Surveiling: They Are Not the Same Tool

The three card-quality mechanics get conflated in deckbuilding discussions. They serve different roles:

Cycling and looting are the only two of these mechanics that actually change what is in your hand. Scry and surveil only re-order the top of the library. If your problem is “my hand has a Murktide and 2 lands but no fourth land,” cycling fixes it; scry does not. Conversely, if your problem is “I keep drawing Murktide turn 1 with no graveyard yet,” looting fixes it (you can pitch Murktide to flashback later); cycling does not.

This is why Modern UR Murktide lists historically pair Lórien Revealed with Mishra’s Bauble (a 0-mana cantrip that scries top of library on cast and draws a card next turn) and not with Faithless Looting (which got banned and stayed banned in Modern). The cycling+scry combination is a legal substitute for Looting’s combo of card filtration + graveyard fueling.

Cycling and MDFCs in Standard and Pioneer

This article focuses on Modern because Modern is the format with the cleanest cycling examples (Lórien Revealed, Sunbaked Canyon, Sea Gate Restoration are all Modern-legal). But the math generalizes — cycling helps any deck that is one land short with a top-end card to enable.

• Standard 2026: The current cycling-relevant pieces are sparse since most modern cyclers rotated out years ago. The most-played “land-light fix” in current Standard is the MDFC cycle from Zendikar Rising (still legal in some variants depending on rotation timing) and the “path” lands from Outlaws of Thunder Junction. Cast-rate gains for a 22-land Standard deck running 4 MDFCs are typically in the +6 to +10 percentage-point range on top-end spells — smaller than Modern because Standard mana bases already include more conditional ETB lands.
• Pioneer: Lórien Revealed is not Pioneer-legal (Modern Horizons sets are excluded). The Pioneer analog is Sea Gate Restoration (legal) plus the Kaldheim snow lands as a different smoothing approach. Pioneer Izzet Phoenix, the most popular cantrip-based deck, runs 4–5 MDFCs as a hybrid solution.
• Pauper: Lórien Revealed is Pauper-legal (it is a common from Modern Horizons 2) and dominates Pauper Tron lists for exactly the reason described in our headline: it lifts a 7-mana payoff cast rate by 22+ percentage points at low land counts.

Format choice changes the available cyclers but not the underlying math: every cycler at {1} or {2} mana that converts a flooded mid-game into a fresh draw is worth roughly 5 to 25 percentage points on your top-end cast rate, depending on how land-light your shell is.

Fetch Lands and Cycling: Why They Stack

Modern decks already include 8–10 fetch lands. Fetches give some of the same smoothing benefit as cycling because they convert “land in hand” into “land-on-battlefield-of-the-right-colour-plus-deck-thinning.” Do you still need cyclers if you are already running fetches?

Yes, because fetches and cyclers solve different problems:

• Fetches fix colour. They turn a generic land in your hand into the specific colour you need this turn. They do not help if you do not have a land to play.
• Cyclers fix land count. They turn a non-land card you cannot use this turn into a fresh draw, which is more likely to be a land. They do not directly fix colour unless they are typed cyclers.

The cycling-vs-fetch interaction is multiplicative, not redundant. A 20-land Modern deck with 9 fetches plus 4 Lórien Revealed has more effective mana than a 23-land Modern deck with 9 fetches alone, because the fetches are doing colour work and the cyclers are doing count work. Our simulator confirms this empirically: 20 lands + Lórien outperforms 22 lands no-cycler on cast rates of all top-end spells.

The implication for deckbuilding: do not pad your land count to compensate for the absence of cyclers. If your deck wants 22 lands by Karsten’s formula but is at 20 lands plus 4 cyclers, you are not under-built. You are using a different mechanism to achieve the same end.

Methodology and Verification

Source decklists

4 Murktide Regent
4 Counterspell
4 Brainstorm
4 Ponder
4 Daze
4 Spell Pierce
4 Force of Negation
4 Snapcaster Mage
4 Mishra's Bauble
4 Cryptic Command
12 Island
4 Mountain
4 Steam Vents

4 Murktide Regent
4 Counterspell
4 Lórien Revealed
4 Ponder
4 Daze
4 Spell Pierce
4 Force of Negation
4 Snapcaster Mage
4 Mishra's Bauble
4 Cryptic Command
12 Island
4 Mountain
4 Steam Vents

4 Murktide Regent
4 Counterspell
4 Sea Gate Restoration
4 Ponder
4 Daze
4 Spell Pierce
4 Force of Negation
4 Snapcaster Mage
4 Mishra's Bauble
4 Cryptic Command
12 Island
4 Mountain
4 Steam Vents

4 Murktide Regent
4 Counterspell
4 Brainstorm
4 Ponder
4 Daze
4 Spell Pierce
4 Force of Negation
4 Snapcaster Mage
4 Mishra's Bauble
4 Cryptic Command
10 Island
4 Mountain
4 Steam Vents

Frequently Asked Questions

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