Evelyn, the Covetous {2}{U/B}{B}{B/R}
Legendary Creature — Vampire Rogue
Identity
Grixis
EDHREC rank
#14,863
Cheapest printing
US$0.25
TCGplayer
Printings
5
Flash
Whenever Evelyn or another Vampire you control enters, exile the top card of each player's library with a collection counter on it.
Once each turn, you may play a card from exile with a collection counter on it if it was exiled by an ability you controlled, and you may spend mana as though it were mana of any color to cast it.
Keywords: flash
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.