The War Doctor

Legendary Creature — Time Lord Doctor{2}{R}{W}3/5

Whenever one or more other permanents phase out and whenever one or more other cards are put into exile from anywhere, put a time counter on The War Doctor. Whenever The War Doctor attacks, it deals damage equal to the number of time counters on it to any target. If a creature dealt damage this way would die this turn, exile it instead.

Colour identity Boros · Commander page

In short

The War Doctor has 6 listed printings; the most valuable is the Showcase · Surge Foil printing from WHO at US$20.85 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.