Metalwork Colossus

This spell costs less to cast, where X is the total mana value of historic permanents you control. (Artifacts, legendaries, and Sagas are historic.)

Equipped creature gets +10/+0 and has vigilance.

Equip legendary creature

Those Who Came Before — This spell costs less to cast for each historic card in your graveyard. (Artifacts, legendaries, and Sagas are historic.)

Exile any number of historic cards from your graveyard with total mana value 30 or greater: You get an emblem with "Creatures you control have base power and toughness 9/9."

When you cast this spell, gain control of all creatures target player controls.

Flying, protection from spells and from permanents that were cast this turn

When Emrakul leaves the battlefield, sacrifice all creatures you control.

Madness—Pay six .

Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.)

: Create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this token: Add ."

: Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Artifact creature spells you cast have affinity for artifacts. (They cost less to cast for each artifact you control.)

Domain — This spell costs less to cast for each basic land type among lands you control.

Flying

Each creature you control has vigilance if it's white, hexproof if it's blue, lifelink if it's black, first strike if it's red, and trample if it's green.