Yenna, Redtooth Regent {2}{G}{W}
Legendary Creature — Elf Noble
Identity
Selesnya
EDHREC rank
#3,015
Cheapest printing
US$1.93
TCGplayer
Printings
4
{2}, {T}: Choose target enchantment you control that doesn't have the same name as another permanent you control. Create a token that's a copy of it, except it isn't legendary. If the token is an Aura, untap Yenna, then scry 2. Activate only as a sorcery.
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.