Ultimecia, Temporal Threat {4}{U}{U}
Legendary Creature — Human Warlock
BlueCommander: legal
Identity
Blue
EDHREC rank
#7,336
Cheapest printing
US$0.54
TCGplayer
Printings
3
When Ultimecia enters, tap all creatures your opponents control.
Whenever a creature you control deals combat damage to a player, draw a card.
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.