Nymris, Oona's Trickster {3}{U}{B}
Legendary Creature — Faerie Knight
Identity
Dimir
EDHREC rank
#5,697
Cheapest printing
US$0.37
TCGplayer
Printings
3
Flash
Flying
Whenever you cast your first spell during each opponent's turn, look at the top two cards of your library. Put one of those cards into your hand and the other into your graveyard.
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.