Flying Whenever another creature leaves the battlefield, you may have target player put the top two cards of his or her library into his or her graveyard. Unearth {2}{B} ({2}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.
When Elvish Visionary enters the battlefield, draw a card.
Other Elf creatures you control get +1/+1. {T}: Add {G} to your mana pool for each Elf you control.
Creatures you control get +1/+1 and have flying and indestructible. At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice Eldrazi Monument.
Flying {B}, Sacrifice another creature: Regenerate Eater of Hope. {2}{B}, Sacrifice two other creatures: Destroy target creature.
Flying When Dungeon Geists enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control Dungeon Geists.
Hexproof Drove of Elves's power and toughness are each equal to the number of green permanents you control.
When Dread Cacodemon enters the battlefield, if you cast it from your hand, destroy all creatures your opponents control, then tap all other creatures you control.
Flash (You may cast this spell any time you could cast an instant.) When Deceiver Exarch enters the battlefield, choose one — • Untap target permanent you control. • Tap target permanent an opponent controls.
{T}: Add {C} to your mana pool. {T}, Sacrifice Crystal Vein: Add {C}{C} to your mana pool.
Trample {1}{G}: Until end of turn, target creature you control has base power and toughness 5/5 and gains trample.
At the beginning of your end step, you may exile target creature you control, then return that card to the battlefield under your control.
{T}: Add to your mana pool one mana of any color in your commander's color identity.
Flash Reach When Cloudthresher enters the battlefield, it deals 2 damage to each creature with flying and each player. Evoke {2}{G}{G} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)
{3}{B}{B}, {T}, Sacrifice X other creatures: Return X target creature cards from your graveyard to the battlefield. {5}{B}{B}: Put Champion of Stray Souls on top of your library from your graveyard.
Trample Centaur Vinecrasher enters the battlefield with a number of +1/+1 counters on it equal to the number of land cards in all graveyards. Whenever a land card is put into a graveyard from anywhere, you may pay {G}{G}. If you do, return Centaur Vinecrasher from your graveyard to your hand.
Flying Whenever Butcher of Malakir or another creature you control dies, each opponent sacrifices a creature.
Living weapon (When this Equipment enters the battlefield, create a 0/0 black Germ creature token, then attach this to it.) Equipped creature gets +X/+X, where X is the number of creature cards in all graveyards. Equip {2}
Target player draws X cards. Shuffle Blue Sun's Zenith into its owner's library.