To be honest, as a player, the misses I hate the most are with my encounter powers since at-wills are repeatable and dailies often have "on miss" events. But I would probably never accept a punishment that hinders me more than the encounter power helps. I would never give up my next standard action, or accept the dazed condition, on purpose.
I can accept healing surge damage e.g. I strike out dangerously so the opponent gets a chance to wack me back. I can accept granting Combat Advantage e.g. I threw myself off balance to accomplish the shot or my weapon got stuck or whatever. No matter what kind of punishment you create, be sure to apply the tag "cannot be resisted or prevented with feats, magic items, special abilities, nadda".
Either an auto-hit with no possible crit OR a reroll of the attack with crit possible.
I would also not allow use of this unless ALL targets of a power were missed AND only 1 target may be hit by the power. Allowing a blast to auto-hit everything in its wake is seriously overpowered.
I can accept healing surge damage e.g. I strike out dangerously so the opponent gets a chance to wack me back. I can accept granting Combat Advantage e.g. I threw myself off balance to accomplish the shot or my weapon got stuck or whatever. No matter what kind of punishment you create, be sure to apply the tag "cannot be resisted or prevented with feats, magic items, special abilities, nadda".
Either an auto-hit with no possible crit OR a reroll of the attack with crit possible.
I would also not allow use of this unless ALL targets of a power were missed AND only 1 target may be hit by the power. Allowing a blast to auto-hit everything in its wake is seriously overpowered.