Rage of Halone needs a potency increase.

[Nezerius]

unfortunately youre wrong. (85 potency over 21s leaves u with 12 potency per 3 seconds. Which is less than 36 potency per 3 hit combo)
if u removed the dot from goring, it stil does more dmg to spam it.
the dot is just icing on the cake.

That's not how dots work. Tooltips show the potency of each dot tick. In the case of Goring Blade, that's 85 potency per dot tick, or 595 over 21 seconds.

That said, you're right about Goring spam being better, since its initial hit is 390 potency, while Halone is a 350 potency attack.