Rick Jones, Destined Sidekick {G}
Legendary Creature — Human Advisor
GreenCommander: legal
Identity
Green
EDHREC rank
#26,107
Cheapest printing
US$0.10
TCGplayer
Printings
1
{3}, {T}: Mill four cards. You may put a Hero or enchantment card from among those cards into your hand. (To mill four cards, put the top four cards of your library into your graveyard.)
Keywords: mill
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.