Chevill, Bane of Monsters {B}{G}
Legendary Creature — Human Rogue
Identity
Golgari
EDHREC rank
#8,348
Cheapest printing
US$1.66
TCGplayer
Printings
4
Deathtouch
At the beginning of your upkeep, if your opponents control no permanents with bounty counters on them, put a bounty counter on target creature or planeswalker an opponent controls.
Whenever a permanent an opponent controls with a bounty counter on it dies, you gain 3 life and draw a card.
Keywords: deathtouch
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.