Xanathar, Guild Kingpin {4}{U}{B}
Legendary Creature — Beholder
Identity
Dimir
EDHREC rank
#6,890
Cheapest printing
US$2.22
TCGplayer
Printings
7
At the beginning of your upkeep, choose target opponent. Until end of turn, that player can't cast spells, you may look at the top card of their library any time, you may play the top card of their library, and you may spend mana as though it were mana of any color to cast spells this way.
Every printing
highest TCGplayer market first; a card with only a thin single listing shows its low
Xanathar, Guild Kingpin
PAFR · 239a
TCGplayer market
US$21.95
Secret Lair
Xanathar, Guild Kingpin
SLD · 1785
TCGplayer market
US$8.27
Secret Lair · Rainbow Foil
Xanathar, Guild Kingpin
SLD · 1785
TCGplayer market
US$8.21
Prerelease
Xanathar, Guild Kingpin
PAFR · 239s
TCGplayer market
US$7.50
Promo Pack
Xanathar, Guild Kingpin
PAFR · 239p
Price not tracked
Extended Art
Xanathar, Guild Kingpin
AFR · 391
Price not tracked
Xanathar, Guild Kingpin
AFR · 239
TCGplayer market
US$2.22
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.