Mannichi, the Fevered Dream {2}{R}
Legendary Creature — Spirit
RedCommander: legal
Identity
Red
EDHREC rank
#24,800
Cheapest printing
US$0.69
TCGplayer
Printings
1
{1}{R}: Switch each creature's power and toughness until end of turn.
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.