Whenever Nova takes damage in an attack step, he deals 2 damage to your opponent
Mjolnir is also in this game, and has the Global ability:
Global: Pay {bolt}{bolt} to deal 1 damage to a target character.
1) Can I enter the attack step, and activate the Global ability of Mjolnir to deal 1 damage to Nova, and in turn deal 2 damage to my opponent?
2) Assume I can do the above; can I activate Mjolnir's Global ability multiple times during the attack step and deal 2 damage to my opponent for each activation?
3) When will damage on a character get reset? If I stack multiple activations of Mjolnir, will the Nova eventually be KO'ed before combat damage?