Retreat to Emeria

Devoid (This card has no color.) At the beginning of your upkeep, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add C." 1G, Sacrifice this enchantment: Search your library for an Eldrazi card, reveal it, put it into your hand, then shuffle.

This land enters tapped. T: Add G or U. 2GU: Until end of turn, this land becomes a 3/3 green and blue Elemental creature with hexproof. It's still a land.

Whenever you gain life, you may pay W. If you do, put a +1/+1 counter on target creature.

+1: Until end of turn, Gideon becomes a 5/5 Human Soldier Ally creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to him this turn. 0: Create a 2/2 white Knight Ally creature token. −4: You get an emblem with "Creatures you control get +1/+1."

Until end of turn, colorless creatures you control gain "T: This creature deals damage equal to its power to target creature."

T: Add C. T: Add CC. Spend this mana only to cast colorless spells. Activate only if you control seven or more lands.

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

Flying When this creature enters, you gain 1 life for each creature you control.