Magus of the Moon

Boil

Blood Moon

Boiling Seas

Price of Glory

Whenever a player taps a land for mana, if it's not that player's turn, destroy that land.

Ruric Thar, the Unbowed

Vigilance, reach
Ruric Thar, the Unbowed attacks each combat if able.
Whenever a player casts a noncreature spell, Ruric Thar deals 6 damage to that player.

Wake of Destruction

Destroy target land and all other lands with the same name as that land.

Worldfire

Exile all permanents. Exile all cards from all hands and graveyards. Each player's life total becomes 1.