So one more thing, noone mentioned it here but Heroic Power need fix too. I will explain how it work now:
Everyone know Rohan have reduction in PvP dmg(compared to PvE), in pvp dmg is 30%(30/100) what would u hit in PvE. Attack boost from Heroic Power change that reduction. With lvl 5 Heroic Power pvp dmg is 55%(30%+25%(heroic)) what would u hit in PvP. So dmg is boosted almost 2x (25(boost)/30(standard value) = 83,3% boost). Defense part of Heroic works as intended.
Simple example with ffs (true dmg skill):
10000 PvE dmg -> *0,3 = 3000(PvP dmg, heroic 0 vs heroic 0)
10000 PvE dmg -> *0,55(0,3+0,25(heroic 5 boost)) = 5500(PvP dmg, heroic 5 vs heroic 0)
10000 PvE dmg -> *0,55(0,3+0,25(heroic 5 boost)) * 0,75(25% decrease from heroic 5 defense part) = 4125(PvP dmg, heroic 5 vs heroic 5)
So it's 3000(heroic 0) vs 4125(heroic 5 vs heroic 5), dmg is higher by 37,5%.
Simple fix - change Heroic Power attack part to 2/4/6/8/10. Results:
10000 PvE dmg -> *0,3 = 3000(PvP dmg, heroic 0 vs heroic 0)
10000 PvE dmg -> *0,4(0,3+0,1(heroic 5 boost)) = 4000(PvP dmg, heroic 5 vs heroic 0)
10000 PvE dmg -> *0,4(0,3+0,1(heroic 5 boost)) * 0,75(25% decrease from heroic 5 defense part) = 3000(PvP dmg, heroic 5 vs heroic 5)
LvL 5 Heroic vs Lvl 0 Heroic is still not 25% boost (its 33,(3)%) but atleast LvL 5 vs LvL 5 cancel each other.