Behelit

There can be up to 5 cards named Behelit in a
library. When a nontoken creature you
control dies, put a Fate counter on Behelit.
If there are three or more Fate counters on
this Artifact, shuffle it into your deck and choose one:
• Search your library for a Demon spell, put it onto the battlefield, and shuffle. Add {c}.
• Target creature becomes a Demon in addition to its other types. It has +2/+2 and Reach. Add {c}.