Liesa, Shroud of Dusk {2}{W}{W}{B}
Legendary Creature — Angel
Identity
Orzhov
EDHREC rank
#5,655
Cheapest printing
US$0.67
TCGplayer
Printings
4
Rather than pay {2} for each previous time you've cast this spell from the command zone this game, pay 2 life that many times.
Flying, lifelink
Whenever a player casts a spell, they lose 2 life.
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.