[quote=@GodOfWar]
[list][*][color=aba000][i]Unconfined Rage[/i][/color] - [color=fff200]Energy Cost: 2[/color]
[sup]The burning, devilish gore lust inside Heretic grows to an enormous amount, allowing him to twirl through battle in a blinding set of claws and blood much faster then the average humanoid. Next round, Heretic may take one extra [i][b]Action[/b][/i] in addition to that round's base maximum amount of [i][b]Actions[/b][/i].[/sup][/list]
[/quote]
Nice idea, but if the ability just gives Heretic an extra action in the following turn you'll end up spending 2 Energy and one action this turn in order to trigger two actions the turn after, overall spending 2 Energy and getting no extra opportunities to attack. The only advantage would be the extra +1 XP for using a demonic ability.

I'd suggest either increase the cost to 4 Energy and gain the [b][i]Rushed[/i][/b] status effect granting two extra actions the following round, or keeping the cost as 2 Energy change the trigger time so that Heretic may immediately use two extra actions the same turn [i]Unconfined Rage[/i] is triggered.