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.
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.
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.
+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...
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.
