Count Dooku, Sith Lord

Deathtouch, first strike, lifelink, vigilance

Whenever a creature dealt damage by Count Dooku, Sith
Lord this turn dies, exile it with X ransom counters on it
where X is that creature's converted mana cost.

Once their turn, each opponent may choose a card they
own in exile with ransom counters on it and pay X mana
where X is the number of ransom counters on it. If they
do, return that card to the battlefield under its owner's
control. Create an X/X red and black Exterminator Droid
cre