Primitive Dragon is our super form.

Why wouldn't they? We've had countless berserker forms, some of them very close to each other. Build and Ex-Aid had one. W and OOOs had one.

I genuinely can't remember this? Granted, I don't remember most of what goes on in Ex-Aid but I'm struggling here. Even looking at non-main Riders, Poppy's 'rage' thing wasn't really a form and that's about all I can come up with. Is it about that one time XXL was Parado?

Level 5.

I don't recall Dragoknight Hunter being a berserker form...

Using Dragon Knight Hunter by yourself was a berserker form. It wasn't when it was shared among the riders.

It literally was. It might have been as brief as FangJoker's berserker phase, but it's there. Emu was the only one who couldn't control Full Dragon.

Nah, I don't really see that; there's more of a case for G3-X at that point. Only ones in my mind are Putotyra, Thunder Breaster, Hazard and Metal Cluster Hopper

If it's a short term one I really don't see the point of them making it a berserk form from the start. While they have narrative weight sometimes, other times they're just bad. (I absolutely despise Metal Cluster as a berserk form btw).

The only one's I feel worked fairly well from what Rider I've seen are Putotyra and Hazard, Putotyra remaining a persistent danger even after it was tamed, and Hazard being elongated and only a last resort until there was a way to mitigate it.

lol yiiiiikes

Do you feel there's way more??