Steps to reproduce:
1. Play 2x Silent Hallcreeper
2. Attack with 1 and choose any of the options
3. Next turn, both Hallcreepers still stack and it is impossible to select them individually (e.g. if you only want to attack with the one that still has all 3 options available)

Current results: You can only select the number of Hallcreepers attacking, not specify which specific instances should attack (they differ in which modes are still available, but the game treats them as identical).

Expected results: Identical creatures that differ only in which "Choose one that hasn't been chosen" modes they have still available should be treated as unique entities.

This is on PC.