Grievous, Cyborg Assassin

Double Strike
When Grievous, Cyborg Assassin enters the battlefield, it fights target creature an opponent controls. If that creature is a Jedi, put a +1/+1
counter on Grievous, Cyborg Assassin for each
Jedi on the battlefield under an opponent's
control.
Whenever Grievous, Cyborg Assassin attacks, it
gains +1/+1 for each Jedi you don't control until
end of turn.