Overview

Eldrazi Incursion is built around one of the most uniquely powerful commander designs in recent memory. Ulalek, Fused Atrocity does not simply copy a single spell: whenever you cast an Eldrazi spell, you may pay two colourless mana to copy every spell you control and every other activated and triggered ability you control, all at once, choosing new targets for the copies as you go. In a deck filled with Eldrazi that generate tokens on cast, draw cards on cast, or lock down boards on cast, that payment becomes a multiplier that scales out of control at terrifying speed.

The alternate commander, Azlask, the Swelling Scourge, runs a completely different game plan: accumulate experience counters by sacrificing colourless creatures, then activate a five-colour pump to give your token army indestructible and annihilator 1. It is a slower, more linear strategy that rewards flooding the board with Scions and Spawns before converting them into a deadly buffed swarm.

Out of the box, Eldrazi Incursion is widely considered the strongest of the four Modern Horizons 3 Commander precons. Its ramp package is deep, its threats are genuinely game-ending, and Ulalek's ability converts even modest Eldrazi casts into explosive turns that most tables cannot answer cleanly.

Key Cards

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Glaring Fleshraker
Token Engine · Damage Dealer
Whenever you cast a colourless spell, it creates an Eldrazi Spawn token, and separately, whenever another colourless creature you control enters, it pings each opponent for 1. In a deck casting Eldrazi constantly, and with Ulalek doubling each cast trigger, Fleshraker quietly builds your board from every colourless spell while draining the table each time another colourless creature shows up.
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Forsaken Monument
Mana Doubler · Anthem
Adds an extra colourless mana every time you tap a permanent for {C}, gives colourless creatures you control +2/+2, and gains you 2 life whenever you cast a colourless spell. In a deck where most threats are colourless, Monument turns your mana rocks into sol lands, your Eldrazi into even more monstrous threats than they already are, and every colourless spell into a small life cushion.
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Eldrazi Confluence
Flexible Spell · Token Generator
A new MH3 spell with three modes (choose any three, repeatable): pump/shrink a creature, exile and return a nonland permanent tapped, or create an Eldrazi Scion token. Flexible removal, tempo, and board building in a single card, and a Ulalek trigger waiting to happen.
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Morophon, the Boundless
Cost Reducer · Tribal Lord
Naming Eldrazi reduces every Eldrazi you cast by one pip of each colour. Combined with Ulalek's hybrid mana cost, Morophon can make many Eldrazi effectively free to cast, enabling the kind of explosive turns where Ulalek's stack-copying truly runs away with the game.

Playing the Deck

The early game is entirely about acceleration. Ulalek costs five mana with hybrid pips, and the deck needs to be casting multiple Eldrazi per turn to fully leverage the copying ability. Prioritise your mana rocks: Sol Ring, the deck's four Talismans, Everflowing Chalice, and Hedron Archive all arrive early and set up the mana for the mid game. Awakening Zone and Mystic Forge are excellent early plays that provide ongoing value and ramp respectively.

Once Ulalek is in play, the deck transforms. The key discipline is paying the two colourless trigger cost at the right moment. Ulalek's copy trigger fires the instant you cast an Eldrazi spell, so the goal is to already have other spells and triggers stacked up, from earlier casts that turn, before that Eldrazi hits the stack and lets you pay to copy everything at once. Artisan of Kozilek reanimates a creature when cast; copying that trigger returns two creatures from your graveyard. Elder Deep-Fiend taps down four permanents; copying it taps eight. Copying a legendary Eldrazi's own spell risks the legend rule forcing a sacrifice once the copy resolves as a permanent, but the chaos Ulalek creates with non-legendary threats is more than enough.

In the late game, the deck has two clean paths to victory. A critical mass of Spawn and Scion tokens from Glaring Fleshraker, Sifter of Skulls, and Awakening Zone converts into a wide combat alpha strike once the table is locked down. Alternatively, with Azlask in the command zone, the experience counter plan builds a board of indestructible annihilating tokens that very few decks can deal with in combat.

Strengths & Weaknesses

Strengths: The ramp package is one of the deepest in any precon, giving the deck reliable access to its expensive threats by turns four and five. Ulalek's ability rewards you for doing what the deck wants to do anyway (cast Eldrazi), meaning the copying trigger rarely feels like extra effort. The cast-trigger game plan is also naturally resilient to removal: opponents cannot stop the triggers by killing Ulalek after a spell is already on the stack. Flash-speed Eldrazi allow you to generate value during opponents' turns, compounding the advantage.

Weaknesses: The mana base is underpowered for a five-colour deck. The pain lands and temples are functional but slow, and the deck frequently stumbles on colour in the early turns before the mana rocks come online. The average mana value of the deck is very high (above four), making aggressive mulligans necessary when an opening hand has no ramp. Selective Obliteration also badly underperforms against mono-colour opponents or opponents with empty hands, which limits the deck's removal suite.

Verdict
Eldrazi Incursion is the standout precon of the Modern Horizons 3 cycle. Ulalek is a genuinely novel design that rewards understanding the stack, punishes opponents who cannot interact at instant speed, and creates the kind of spectacular game-winning turns that make Commander memorable. The deck is playable out of the box, immediately upgradable with a handful of key additions, and capable of dramatically more degenerate lines once tuned. If you want the most powerful and most interesting commander from this cycle, Ulalek is the clear answer.

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Full Decklist

All 100 cards from the out-of-the-box Eldrazi Incursion precon, enriched with current prices. Click any card to expand it.

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