Marvin, Murderous Mimic {2}
Legendary Artifact Creature — Toy
ColorlessCommander: legal
Identity
Colorless
EDHREC rank
#1,088
Cheapest printing
US$3.74
TCGplayer
Printings
4
Marvin has all activated abilities of creatures you control that don't have the same name as this creature.
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.