Fixed Trinisphere + Phyrexian Metamorph bug (paying 2 life increases remaining cost)

[TenArms]

With Trinisphere in play, casting Metamorph for 3 by paying 2 life for Phyrexian blue increases the remaining cost to 4 instead of 3. This is bugged and I lost this game outright due to this not working properly.

NOTE: Metamorph can still be cast for 3 mana and 2 life normally when Trinisphere is not in play.

 

[Danny Mcbride]

Hello! I just had a very similar bug with dismember while a trinisphere was in play. It starts costing 3 Generic + 2 Phyrexian Black. After I pay the 2 Phyrexian Black with HP, it changes the mana cost to 5 generic.