Olivia, Mobilized for War {1}{B}{R}
Legendary Creature — Vampire Knight
Identity
Rakdos
EDHREC rank
#10,971
Cheapest printing
US$0.63
TCGplayer
Printings
5
Flying
Whenever another creature you control enters, you may discard a card. If you do, put a +1/+1 counter on that creature, it gains haste until end of turn, and it becomes a Vampire in addition to its other types.
Keywords: flying
Every printing
highest TCGplayer market first; a card with only a thin single listing shows its low
Secret Lair
Olivia, Mobilized for War
SLD · 492
TCGplayer market
US$11.71
Prerelease
Olivia, Mobilized for War
PSOI · 248s
TCGplayer market
US$11.02
The List
Olivia, Mobilized for War
PLST · SOI-248
Price not tracked
Sketch · Secret Lair
Olivia, Mobilized for War
SLD · 699
Price not tracked
Olivia, Mobilized for War
SOI · 248
TCGplayer market
US$0.63
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.