Yoink and grenade bounce

[Dyzard]

If deadpool uses the grenade bounce part of this card does it use an action to do so the card does not say its an attack action it just says he can use grenade bounce without paying its cost, it does say attack but just want to be clear if thats saying it is or is not an action

[Negoldar]

Yes it does. Yoink says he may use it this activation but does not let him use it for free. He will still need to use an action to make the attack but he will not have to pay the power cost for it when he does.