Altaïr Ibn-La'Ahad {R}{W}{B}
Legendary Creature — Human Assassin
Identity
Mardu
EDHREC rank
#7,567
Cheapest printing
US$1.39
TCGplayer
Printings
4
First strike
Whenever Altaïr attacks, exile up to one target Assassin creature card from your graveyard with a memory counter on it. Then for each creature card you own in exile with a memory counter on it, create a tapped and attacking token that's a copy of it. Exile those tokens at end of combat.
Keywords: first strike
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.