Will the mana that has been added to your mana pool by Koth of the Hammer's -2 ability empty as your turn ends, or is the mana from the -2 ability added for the rest of the game?


Mana empties from every player's mana pool at the end of each step and phase.

500.4. When a step or phase ends, any unused mana left in a player’s mana pool empties. This turn-based action doesn’t use the stack.

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