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Kozilek's Unsealing

Enchantment

Devoid (This card has no color.)
Whenever you cast a creature spell with mana value 4, 5, or 6, create two 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this token: Add {C}."
Whenever you cast a creature spell with mana value 7 or greater, draw three cards.

CMC
3
Mana cost
{2}{U}
Color identity
U
Rarity
uncommon
Set
Modern Horizons 3
Price
$0.32
EDHREC rank
#2482
Buy on TCGplayer
Kozilek's Unsealing card art
Kozilek's Unsealing turns every large creature you cast into a free spell — draw two when something with mana value 7 or more hits the stack, ping everything for 4 when it's 10 or more. Ulalek, Fused Atrocity already triggers off casting Eldrazi and copies those triggers, so Kozilek's Unsealing doesn't just draw cards in that deck — it draws cards multiple times per cast.

Best Commanders

Commanders with the highest synergy

01
Ulalek, Fused Atrocity

Ulalek, Fused Atrocity

68.4% of decks · synergy 0.63

Ulalek, Fused Atrocity copies every Eldrazi cast trigger for each Eldrazi you control, which means a single large Eldrazi can fire Kozilek's Unsealing repeatedly in the same turn — it's not a draw engine, it's a draw avalanche.

04
Ellie and Alan, Paleontologists

Ellie and Alan, Paleontologists

31.9% of decks · synergy 0.31

Ellie and Alan, Paleontologists care about casting Dinosaurs, many of which hit the 7+ mana value threshold that flips Kozilek's Unsealing into full draw mode — the enchantment slots cleanly into a strategy already built around beefy creatures.

05

Runo Stromkirk

24.8% of decks · synergy 0.24

Runo Stromkirk's sea-monster package skews heavily toward 7-plus mana value creatures, so Kozilek's Unsealing provides consistent card draw in a color pair that doesn't always have access to it.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Kozilek's Unsealing is legal in Commander, Legacy, Modern, Vintage, and Oathbreaker, but Commander is where it does real work. In Modern and Legacy the card is too slow and too conditional — formats where threats need to win the game, not replace themselves — and the enchantment hasn't found competitive purchase there. Oathbreaker shares Commander's big-spell sensibilities, so it's a functional include in any planeswalker shell that deploys large permanents. Commander is the clear home: games go long enough that a two-mana enchantment pays off, and the average big-creature deck regularly hits the 7-MV trigger, let alone the 10-MV threshold.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.32 bulk tier

At $0.32, Kozilek's Unsealing is firmly bulk — easy to pick up as a throw-in or from a bargain bin. The price reflects wide print availability rather than narrow demand, and given how broadly it slots into any green or colorless big-creature shell, it's unlikely to climb.

Explore

Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.