There is a warlord with Resourceful Presence in a 4e D&D game I'm DM'ing. Resourceful Presence says:
Ally who sees you and spends an action point to attack gets damage bonus (1/2 level + Int mod); if attack hits no targets, ally gains temp hp (1/2 level + Cha mod)
There is also a ranger in the party who has Twin Strike, which is one power with two attacks. If the ranger uses an action point and attacks with Twin Strike, how do I treat the attacks considering Resourceful Presence? Do I add the damage bonus twice if both attacks hit? Do I double the regained temp hp if both miss? What happens if one misses and one hits?
I feel like the bonus damage/temp hp should only be counted once because none of the other party members have an opportunity for double damage/temp hp, but that causes major problems if one Twin Strike attack hits and the other misses. Does the PC get bonus damage or temp hp?
It's early in this game and I have a feeling the warlord/Twin Strike issue is going to come up again (e.g. Commander's Strike). I'd really like to get my brains around this so I can be consistent with the players throughout the game. Help appreciated.