Choose two — • Return target creature card with mana value 2 or less from your graveyard to the battlefield. • You gain 4 life. • Counter target creature spell. • Draw a card.
Flying {2}: This creature gets +1/+0 until end of turn. {X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by this creature this turn. Activate only once each turn. 5/5
Coven — At the beginning of combat on your turn, put a +1/+1 counter on up to one target creature you control. Then if you control three or more creatures with different powers, draw a card. 0/4
When you cast this spell, you may put two cards your opponents own from exile into their owners’ graveyards. If you do, create three 1/1 colorless Eldrazi Scion creature tokens. They have “Sacrifice this creature: Add {C}.” 4/5
Search your library for up to X basic land cards, where X is the number of lands you control, put them onto the battlefield tapped, then shuffle.
Target player mills eight cards. Fuse (You may cast one or both halves of this card from your hand.) // Put a creature card from a graveyard onto the battlefield under your control. It gains haste until end of turn. Fuse (You may cast one or both halves of this card from your hand.)
When Goblin Arsonist dies, you may have it deal 1 damage to any target. 1/1
Create two 1/1 red Goblin creature tokens. Storm (When you cast this spell, copy it for each spell cast before it this turn.)
When Brain Maggot enters, target opponent reveals their hand and you choose a nonland card from it. Exile that card until Brain Maggot leaves the battlefield. 1/1
Return target creature card from your graveyard to the battlefield. Flashback {3}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
{T}: Add {C}. {2}{W}{B}, {T}: Creatures you control gain deathtouch and lifelink until end of turn.
Each opponent sacrifices an artifact. For each artifact sacrificed this way, you create a Treasure token. Flashback {8}{R}{R}. This spell costs {X} less to cast this way, where X is the greatest mana value of a commander you own on the battlefield or in the command zone. (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Imprint — Whenever a nontoken creature dies, you may exile that card. If you do, return each other card exiled with Mimic Vat to its owner’s graveyard. {3}, {T}: Create a token that’s a copy of a card exiled with Mimic Vat. It gains haste. Exile it at the beginning of the next end step.
Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you’re done activating mana abilities pays for {1}.)