commander · Ulalek, Fused Atrocity
Eldrazi Incursion (M3C).
A five-color Eldrazi tribal deck led by Ulalek, Fused Atrocity — ramp into enormous Eldrazi creatures, copy their cast triggers for free, and win by annihilating opponents' permanents and board presence.
The Commanders
Eldrazi Incursion is a five-color Eldrazi tribal deck from Modern Horizons 3. Ulalek, Fused Atrocity rewards you for casting Eldrazi by copying the cast triggers of every Eldrazi you play. The Eldrazi titans already have some of the most powerful cast triggers in Magic — Emrakul reshuffles graveyards, Kozilek draws cards, Ulamog exiles permanents — and Ulalek copies them for free every time you cast another Eldrazi spell.
Ulalek, Fused Atrocity copies the "when you cast this spell" trigger of each Eldrazi you cast. That means casting Kozilek, Butcher of Truth draws four cards twice. Casting Drowner of Hope generates tokens twice. The deck is built to exploit this with a full suite of Eldrazi at every mana cost, from cheap utility pieces to game-ending titans. Ulalek is ranked top 20 on EDHREC because this ability is obscenely powerful in a shell built around it.
Key Cards
Drowner of Hope
One of the deck's best mid-range Eldrazi. Drowner of Hope enters and creates two 1/1 Eldrazi Scion tokens. Those Scions can be sacrificed for colorless mana — accelerating into your bigger Eldrazi. With Ulalek, you get six Scions instead of two when you cast Drowner of Hope — six extra colorless mana that immediately pays for your next Eldrazi. This explosive mana conversion in the middle of your turn lets you cascade into your next Eldrazi the same turn Drowner enters.
Elder Deep-Fiend
Emerge lets you sacrifice a creature to cast Elder Deep-Fiend for reduced cost — typically paying four to five mana by sacrificing a Scion. When it enters, Elder Deep-Fiend taps up to four target permanents. With Ulalek, you tap up to eight permanents — hitting an opponent's entire board. This shuts down blockers, mana rocks, planeswalkers, and utility creatures simultaneously. A perfect attack step followed by Elder Deep-Fiend tapping opponents' defenses flat is often a game-ending sequence.
World Breaker
A seven-mana Eldrazi with reach that exiles an artifact, enchantment, or land when it enters. With Ulalek, it exiles two permanents. Reach means it answers flying creatures that would otherwise race you. Most importantly, World Breaker can be sacrificed to return itself from the graveyard to your hand — making it effectively immune to graveyard hate and reusable every time it dies. The deck can use World Breaker to answer problematic lands like Maze of Ith or Glacial Chasm that otherwise shut down the strategy.
Eldrazi Monument
An artifact that gives all your creatures +1/+1, flying, and indestructible. In exchange, you sacrifice a creature during each upkeep. The deck generates Eldrazi Scions constantly — they're the natural sacrifice fodder. With Eldrazi Monument active, your entire Eldrazi army has flying and indestructible. Opponents can't block with ground creatures and can't destroy your Eldrazi in combat. Combined with annihilator triggers, this makes an already unblockable attack force completely unkillable in combat.
Garruk's Uprising
Draw a card whenever a creature with power four or greater enters the battlefield under your control. Every Eldrazi in the deck has power four or greater. Every time you cast an Eldrazi, Garruk's Uprising draws a card. Garruk's Uprising also gives your creatures with power four or greater trample — meaning every Eldrazi that attacks tramples through blockers. In a deck where each creature has 5-15 power and trample, there's no way to chump-block effectively.
How to Play
Turns one through four are entirely dedicated to ramp. Sol Ring, talismans, Eldrazi Temple, and colorless-producing lands accelerate you to eight or nine mana as fast as possible. Ulalek sits in the command zone as a passive trigger-doubler — you don't need to cast him unless his stats are relevant. The deck functions as long as he's in the command zone.
Turn five or six, cast your first major Eldrazi. If Ulalek isn't out, look to resolve him before your biggest Eldrazi. Turn seven onward, the Eldrazi cascade begins — each one you cast generates Scions, draws cards, exiles permanents, or taps the board. With Ulalek doubling each trigger, opponents quickly run out of permanents and life total simultaneously. Win through combat damage from annihilating Eldrazi over two to three turns once the engine is established.