Arwen Undómiel {G}{U}
Legendary Creature — Elf Noble
Identity
Simic
EDHREC rank
#7,539
Cheapest printing
US$0.27
TCGplayer
Printings
2
Whenever you scry, put a +1/+1 counter on target creature.
{4}{G}{U}: Scry 2.
Keywords: scry
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.