Grievous, the Knight Slayer

Intimidate
When Grievous, the Knight Slayer enters the battlefield, create 2 1/1 colorless battle droid
creature tokens.
Whenever Grievous, the Knight Slayer kills an opponent's creature, Grievous, the Knight Slayer
gets a +1/+1 counter.
When Grievous, the Knight Slayer enters the graveyard or is killed, you may pay
{4}{p/c}. If you do, he goes 3rd from the top of
your library instead