KICK ME!: Whenever Bombastic Bag-Man takes damage from an attack, deal the attacker penetrating damage equal to the damage taken by Bombastic Bag-Man. Bombastic Bag-Man can't be healed except by the Fantastic Four team ability
.................................

So if you masterminded damage to bagman, would the attacker take that amount of damage?

Mastermind damage is not an attack, so they would not trigger the trait if the damage was MM'd onto Bagman

Nope.



.
.
.
.
.
.
.

From what i've read on here, he wouldn't. I think it only works if the attack is against him because i think Mastermind says the damage dealt is not an attack.