
At the beginning of each opponent's end step, if that player controls more creatures than you, create a 1/1 white Soldier creature token.
At the beginning of each opponent's end step, if that player controls more lands than you, you may search your library for a basic Plains card, put it onto the battlefield tapped, then shuffle.
Keeper of the Accord has 11 printings, first in Commander Legends (2020). EDHREC ranks it #1,319 among Commander cards. It appears most in Caesar, Legion's Emperor decks (10,584 on EDHREC). 5 public decks on TCG run it. It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.