, : Arashi, the Sky Asunder deals X damage to target creature with flying.
Channel — , Discard Arashi: Arashi deals X damage to each creature with flying.
Destroy target artifact or enchantment.
Cycling (, Discard this card: Draw a card.)
Return all lands to their owners' hands.
Destroy target artifact or land.
Destroy target artifact or enchantment, then populate. (Put a token onto the battlefield that's a copy of a creature token you control.)
When Sundering Titan enters the battlefield or leaves the battlefield, choose a land of each basic land type, then destroy those lands.
Convoke (Each creature you tap while casting this spell reduces its cost by or by one mana of that creature's color.)