Violent Ultimatum

Destructive Flow

At the beginning of each player's upkeep, that player sacrifices a nonbasic land of their choice.

Darigaaz, the Igniter

Flying
Whenever Darigaaz, the Igniter deals combat damage to a player, you may pay {2}{R}. If you do, choose a color, then that player reveals their hand and Darigaaz deals damage to the player equal to the number of cards of that color revealed this way.

Keldon Firebombers

When Keldon Firebombers enters, each player sacrifices all lands they control except for three.