Monsoon

At the beginning of each player's end step, this enchantment deals X damage to that player, where X is the number of untapped lands they control.

At the beginning of each player's upkeep, this enchantment deals damage to that player equal to the number of nonbasic lands they control.

At the beginning of each player's upkeep, if that player controls more lands than each other player, this enchantment deals 2 damage to them.

At the beginning of each player's upkeep, this enchantment deals damage to that player equal to the number of artifacts they control.

At the beginning of each player's end step, this enchantment deals 2 damage to that player unless one of their opponents was dealt damage this turn.

At the beginning of your upkeep, this enchantment deals X damage to target opponent, where X is the number of cards in your hand minus the number of cards in that player's hand.