RulingHall of Heroes (rules 1.0–1.4)

Thor: If Thor plays Defender of the Nine Realms, and Baron Zemo is in the encounter deck thanks to Cap’s Shadows,…

Question

If Thor plays Defender of the Nine Realms, and Baron Zemo is in the encounter deck thanks to Cap’s Shadows, what happens if Zemo engages with Thor as the cost for his Thwart event? Do you still remove threat, as you started the Thwart pre-Zemo?

Answer

You have already played your thwart card at the point which Zemo comes into play, so Zemo’s ability is moot at that point. He does, however, prevent you from taking any more thwart actions once he is engaged with you.

-Caleb