Walking Ballista enters with X +1/+1 counters on it.: Put a +1/+1 counter on Walking Ballista.Remove a +1/+1 counter from Walking Ballista: It deals 1 damage to any target.
Destroy X target artifacts and/or creatures. For each permanent destroyed this way, its controller reveals cards from the top of their library until an artifact or creature card is revealed and exiles that card. Those players put the exiled cards onto the battlefield, then shuffle.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
Whenever Gonti's Aether Heart or another artifact you control enters, you get (two energy counters).Pay eight , Exile Gonti's Aether Heart: Take an extra turn after this one.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
Enchant artifact you controlAt the beginning of your upkeep, create a token that's a copy of enchanted artifact. Then if you control eight or more artifacts with the same name as one another, you win the game.
Draw cards equal to the greatest power among creatures you control.You may cast a spell with mana value 5 or less from your hand without paying its mana cost.
As Metallic Mimic enters, choose a creature type.Metallic Mimic is the chosen type in addition to its other types.Each other creature you control of the chosen type enters with an additional +1/+1 counter on it.
FlyingSacrifice Hope of Ghirapur: Until your next turn, target player who was dealt combat damage by Hope of Ghirapur this turn can't cast noncreature spells.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
HasteWhenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni, Undying Partisan.Sacrifice another creature: Yahenni gains indestructible until end of turn.
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 .)
+2: Reveal the top three cards of your library. Put all nonland permanent cards revealed this way into your hand and the rest on the bottom of your library in any order.−2: Exile target creature. Its controller gains life equal to its power.−9: Put five +1/+1 counters on each creature you control and five loyalty counters on each other planeswalker you...
Instant and sorcery spells you cast cost less to cast.Whenever a spell or ability you control counters a spell, you may draw a card. If you do, discard a card.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)FlyingAt the beginning of your end step, each opponent discards a card., Sacrifice an artifact: Target creature gets -2/-2 until end of turn.
HasteWhenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni, Undying Partisan.Sacrifice another creature: Yahenni gains indestructible until end of turn.
Flying, vigilanceCrew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)You may remove a loyalty counter from a planeswalker you control rather than pay Heart of Kiran's crew cost.
+1: Create a colorless artifact token named Etherium Cell with ", Sacrifice this artifact: Add one mana of any color."−2: Target creature gets +X/-X until end of turn, where X is the number of artifacts you control.−7: You get an emblem with "At the beginning of combat on your turn, target artifact you control becomes an artifact creature with base power...
HasteWhenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni, Undying Partisan.Sacrifice another creature: Yahenni gains indestructible until end of turn.
Gain control of target creature or Vehicle until end of turn. Untap it. It gains haste until end of turn.You may cast a spell with mana value 2 or less from your hand without paying its mana cost.
