Warping Wail

T: Add C. 4, T, Sacrifice this land: Destroy target nonbasic land.

T: Add C. Whenever you cast a colorless spell with mana value 7 or greater, you may sacrifice this land. If you do, search your library for a colorless creature card, reveal it, put it into your hand, then shuffle.

This creature can't be blocked.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for 1.) Target creature gets -X/-X until end of turn. You gain X life.

As an additional cost to cast this spell, discard a land card. Draw two cards.

Roast deals 5 damage to target creature without flying.

0: Attach target Equipment you control to this creature. Activate only as a sorcery.

Destroy target Forest, green enchantment, or green planeswalker. If that permanent was a Nissa planeswalker, draw a card.