Riku of Two Reflections {2}{G}{U}{R}
Legendary Creature — Human Wizard
Identity
Temur
EDHREC rank
#12,376
Cheapest printing
US$5.55
TCGplayer
Printings
3
Whenever you cast an instant or sorcery spell, you may pay {U}{R}. If you do, copy that spell. You may choose new targets for the copy.
Whenever another nontoken creature you control enters, you may pay {G}{U}. If you do, create a token that's a copy of that creature.
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.