Jamie McCrimmon {2}{G}
Legendary Creature — Human Warrior
GreenCommander: legal
Identity
Green
EDHREC rank
#15,912
Cheapest printing
US$0.22
TCGplayer
Printings
4
Trample
Whenever you cast a historic spell, Jamie McCrimmon gets +X/+X until end of turn, where X is that spell's mana value. (Artifacts, legendaries, and Sagas are historic.)
Doctor's companion (You can have two commanders if the other is the Doctor.)
Keywords: trample, doctor's companion
Every printing
highest TCGplayer market first; a card with only a thin single listing shows its low
In short
A Commander deck is a commander and 99 other cards, one copy of each (except basic lands), all inside the commander's colour identity. Paste a full list into the deck price calculator to price it and check it against the format.