When I play this card, I activate it like a normal trap card during my opponent's Draw Phase, or when they move to Main Phase 1, etc...so it's already face up BEFORE they attack, that way I CAN activate the effect when my opponent attacks.
The card does not have an activation clause, just a clause on when the effect can be used.
But I still don't quite understand why it DOESN'T target. The wording is almost identical to 'Sakaretsu Armor' except it 'bounces' the attackting monster back to the Owner's hand instead of destroying it.
It's effect is limited to ONLY the attacking monster, just like 'Sakaretsu Armor'; whereas, 'Widespread Ruin', which DOESN'T target, won't necessarily destroy the attacking monster. I understand the reasoning behind 'Widespread Ruin'.
Thanks.