The Guildpact

At the beginning of each player's upkeep, if that player has a guild, they may scry 1.

When a player or a card that player controls deals damage to a single opponent, if that opponent's guild shares 1 and only 1 color with the player's guild, that player sacrifices a nontoken permanent or discards two cards. Then, each player with a guild loses 5 life. Remove The Guildpact from the game.