Phage the Untouchable {3}{B}{B}{B}{B}
Legendary Creature — Avatar Minion
BlackCommander: legal
Identity
Black
EDHREC rank
#7,529
Cheapest printing
US$11.64
TCGplayer
Printings
4
When Phage enters, if you didn't cast it from your hand, you lose the game.
Whenever Phage deals combat damage to a creature, destroy that creature. It can't be regenerated.
Whenever Phage deals combat damage to a player, that player loses the game.
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.