Kumena, Tyrant of Orazca [Rivals of Ixalan Prerelease Promos] Plant Wall sacrifice Koskun Falls unless you

sacrifice Koskun Falls unless you tap an untapped creature you control

Set: Innistrad Type: Creature — Human Wizard Rarity: Rare Cost: {1}{U} Flash

create a token that's a copy of enchanted artifact

The renegades mounted an aether disruptor aboard a lightweight thopter to destroy Tezzeret's Planar Bridge

then put all cards exiled with Knowledge Vault into their owner's hand

Kumena, Tyrant of Orazca [Rivals of Ixalan Prerelease Promos] Plant Wall sacrifice Koskun Falls unless youSet: Rivals of Ixalan Prerelease Promos Type: Legendary Creature Merfolk Shaman Rarity: Mythic Cost: {1}{G}{U} Tap another untapped Merfolk you control: Kumena, Tyrant of Orazca can't be blocked this turn. Tap three untapped Merfolk you control: Draw a card. Tap five untapped Merfolk you control: Put a +1 +1 counter on each Merfolk you control.