Board Thread:Plants vs. Zombies Heroes/@comment-25029082-20170324154618/@comment-4024597-20170326122622

Since zombies die before plants, the sequence of death is: Hibernating Beary -> Undying Pharaoh -> 4-strength GoW -> Surprise Garg -> 6 strength GoW. Thus Brainstorm will die no matter how his Super-Block Meter charges. But if plants die first, then Brainstorm has a chance of survival by charging only 1 segment from 4-strength GoW's attack.

Conclusion: To save yourself from the combo GoW + Doom-Shroom, you need to place Undying Pharaoh to the right of GoW, not directly against it.