Locus Eldrazis

Each player sacrifices all colored permanents they control.

Whenever Bane of Bala Ged attacks, defending player exiles two permanents they control.

All creatures able to block Breaker of Armies do so.

Cloudpost enters the battlefield tapped.

{T}: Add {C} for each Locus on the battlefield.

When you cast this spell, you may search your library for a colorless creature card with converted mana cost 7 or greater, reveal it, then shuffle your library and put that card on top of it.

The first creature spell you cast each turn costs {2} less to cast.

When you cast this spell, create a 10/10 colorless Eldrazi creature token.

Enchant creature

Enchanted creature gets +10/+10 and has trample and annihilator 2. (Whenever it attacks, defending player sacrifices two permanents.)

{T}: Add {C}.

{T}: Add {C}{C}. Spend this mana only to cast colorless Eldrazi spells or activate abilities of colorless Eldrazi.

This spell costs {1} less to cast for each card type among cards in your graveyard.

When you cast this spell, you gain control of target opponent during that player's next turn. After that turn, that player takes an extra turn.

Flying, trample, protection from instants

Endless One enters the battlefield with X +1/+1 counters on it.

Colorless Eldrazi spells you cast cost {2} less to cast.

{7}, {T}: Search your library for a colorless creature card, reveal it, and put it into your hand. Then shuffle your library.

When Glimmerpost enters the battlefield, you gain 1 life for each Locus on the battlefield.

{T}: Add {C}.

Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents.)

Whenever an opponent sacrifices a nontoken permanent, put that card onto the battlefield under your control.

{T}: Add {C}{C}.

{2}: Mirage Mirror becomes a copy of target artifact, creature, enchantment, or land until end of turn.

Counter target spell or ability that targets a permanent you control.

This spell costs {7} less to cast if it targets a spell or ability that targets a creature you control with power 7 or greater.

Create five 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add {C}."

{T}: Add {C}.

{6}, {T}, Sacrifice Spawning Bed: Create three 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add {C}."

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

{4}: Create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add {C}."

{20}: Cast any number of Eldrazi cards you own from outside the game without paying their mana costs.

{T}: Add {C}.

{2}, {T}: Thespian's Stage becomes a copy of target land, except it has this ability.

When you cast this spell, exile two target permanents.

Indestructible

Whenever Ulamog, the Ceaseless Hunger attacks, defending player exiles the top twenty cards of their library.

Your opponents can't cast spells with even converted mana costs. (Zero is even.)

Your opponents can't block with creatures with even converted mana costs.