Mister Negative {5}{W}{B}
Legendary Creature — Human Villain
Identity
Orzhov
EDHREC rank
#8,520
Cheapest printing
US$1.22
TCGplayer
Printings
3
Vigilance, lifelink
Darkforce Inversion — When Mister Negative enters, you may exchange life totals with target opponent. If you lost life this way, draw that many cards.
Keywords: lifelink, vigilance, darkforce inversion
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.