Oriss, Samite Guardian {1}{W}{W}
Legendary Creature — Human Cleric
WhiteCommander: legal
Identity
White
EDHREC rank
#25,195
Cheapest printing
US$0.71
TCGplayer
Printings
1
{T}: Prevent all damage that would be dealt to target creature this turn.
Grandeur — Discard another card named Oriss, Samite Guardian: Target player can't cast spells this turn, and creatures that player controls can't attack this turn.
Keywords: grandeur
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.