Stolen Eggs

The next sorcery spell you cast this turn can be cast as though it had flash. (It can be cast any time you could cast an instant.) Draw a card.

Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.

Whenever a player taps a land for mana, this enchantment deals 1 damage to that player.