Zathar Runefinder

+1: Search your library for a creature with power 1 or less, put that creature on the battlefield with a +1/+1 counter on it.
-X: Counter target instant or sorcery with mana value X or less. Activate this ability any time you could cast an instant.
-8: You get an emblem with "Whenever a creature you control would die you may instead sacrifice another creature you control."