Hi,
Monster of the Deep :
Action: Corrupt this unit and choose up to two target units. Those units cannot attack or defend until the end of the turn.
Iron Discipline :
Action: Target one unit. Until the end of the turn, cancel any other action that targets this unit unless the action's controller pays an additional 4 resources (per action).
Here is my question : If the monster corrupts himself to prevent 2 of my units from attacking, and I play Iron Discipline on one of them (and my opponent cannot pay 4 resources), what happens to the monster ?
My guess is the "Corrupt this unit and choose..." is not a cost, because "to" is missing (like "Sacrifice a unit to"), and so the monster restores himself, and is able to corrupt again and choose new targets (not the one with Iron Discipline though). Some cards also have a text like "Sacrifice a unit. If you do, ...". So I'm not sure what to do.
Thanks.