So basically I shouldn't play Berserker?
nah you can still play a zerker just know that PVE is going to be shit. In normal games that's not really an issue since you just need to pve til cap and your maxed out and just do PVP, but this game you will grind mobs forever, for levels, for loot, for money, for mats, etc.
level 1-48 berserker drinks potions on cooldown due to no healing at all, you go through a metric fuckton of pots, carry around like 300-400 pots which uses up a lot of your weight limit just on that, and frequent runs back to your mount/town to get more pots.
With heal on spin, you go from having to use a pot every 5 seconds, to never having to POT except for bosses or PVP. You don't kill fast since you lack the damage of other classes but you have basically unlimited endurance, slow and steady killing. We don't really know how bad this nerf is going to be (it was shit in KR, then they eased up on it a bit but it's still shit, no telling what the NA version will look like)
They recently tried to fix the over reliance on pots in PVE with adding healing on a few shit abilities that you don't use, but they are bugged. Fierce Strike is supposed to have a heal, and the bleed (DoT) associated with it, claw scar, also supposed to add a heal. Fierce is bugged and doesn't heal, and claw scar only adds a heal on the application of the bleed, meaning you can only get the heal on initial application.
If the heal on spin is truly FUBAR then we'll have to go back to carrying around 300-400 pots at all times just to PVE. it's just a major hassle/inconvenience/silver sink.
Keep in mind Pots heal 275 health every 5 seconds, berserkers have the most health and the least amount of healing, and you'll have 3-4k health at level 55+.