Sky Striker, Airspace Zero

At the beginning of your postcombat main
phase, choose a creature you control, surviel 3,
then draw a card. If an instant or sorcery card
was sent to the graveyard this way, you may
sacrifice that creature. If you do, search your
library for a creature card with converted mana
cost equal to the sacrificed creature's converted
mana cost with a different name, put that card
onto the battlefield, then shuffle your library.