Flying When Cavern Harpy enters the battlefield, return a blue or black creature you control to its owner's hand. Pay 1 life: Return Cavern Harpy to its owner's hand.
I — Search your library for a Doctor card, reveal it, put it into your hand, then shuffle. II — Create a Food token and a 1/1 white Human creature token with "Doctor spells you cast cost {1} less to cast." III — Create a token that's a copy of target creature, except it's a legendary Alien named Prisoner Zero.
Choose one — • Target creature gets +2/+2 and gains trample until end of turn. • Exile target creature with power 5 or greater. • Create a 2/2 white Knight creature token with vigilance.
Whenever you discard a creature card, create a 2/2 black Zombie creature token. Whenever you discard a land card, add {B}{B}. Whenever you discard a noncreature, nonland card, draw a card.
If you control two or more other lands, Hall of Storm Giants enters the battlefield tapped. {T}: Add {U}. {5}{U}: Until end of turn, Hall of Storm Giants becomes a 7/7 blue Giant creature with ward {3}. It's still a land.
When Gideon's Resolve enters the battlefield, you may search your library and/or graveyard for a card named Gideon, Martial Paragon, reveal it, and put it into your hand. If you search your library this way, shuffle. Creatures you control get +1/+1.
{3}, {T}: Exile target instant or sorcery spell that targets you. {3}, {T}, Sacrifice Shell of the Last Kappa: You may cast a spell from among cards exiled with Shell of the Last Kappa without paying its mana cost.
Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."
Vigilance When Doric, Nature's Warden enters the battlefield, search your library for a Forest card, put it onto the battlefield tapped, then shuffle. Whenever Doric attacks, you may pay {1}{G}. If you do, transform her.