RulingHall of Heroes (rules 1.0–1.4)
Expansion card questions: What would happen if Kang has Temporal Shield equipped, as well as a tough status card, and takes damage?…
Question
What would happen if Kang has Temporal Shield equipped, as well as a tough status card, and takes damage? What is the order in which any of these would clear/be removed?
Answer
Its timing happens before damage is dealt, when the attack itself is initiated. Because of this, Temporal Shield resolves entirely before the tough status card, meaning the tough status card will have no damage to prevent and will not be discarded.
— Boggs