Inescapable Force

When Inescapable Force enters the battlefield, choose a player. As long as Inescapable Force is in play, whenever the chosen player would add any amount of mana to their mana pool, you may add that much mana of any single color to your mana pool and the chosen player instead adds {0} to their mana pool.
Decay 4 (Exile this spell when four complete turns of yours have elapsed s