Creating hero Bear Form ultimate

I'm trying to figure out how to make a bear form for a custom hero I am making. If I try to base it off the unit ability Bear Form it isn't a hero spell so it doesn't have things like research tooltip and such. If I use metamorphasis then it doesn't transform permanently and you cannot transform back without waiting for the time to run out. Can someone tell me how I'd make the spell I want?

Try using metamorphis, but setting the duration to 0, this should make it infinit. Then simply add a transision skill on the metamorphied character, so he can return. Should work..

Thanks pascal that worked. I still have a problem though. When I morph into bear form the hero doesn't take on the abilities that I specified for the morphed to form. He remains identical in all but the model and a bit of added damage. I can't even find where the added damage comes from in the spell. I want him to morph and when he does to only have critical strike and added hp and damage.

I don't like using triggers for spells :\ There must be a way to change values because the druid of the claw morphed has more hp and damage and he doesn't have heal or roar.

Dont forget to check if you need some research/upgrade for it to work. Umm what is the goal of having a bear with super power all the time? I hope he cant use spell or everyone will just keep him in bear form.

Yeah the idea is that the bear would be a melle with none of the caster spells. I just can't seem to get it to work. Even when I use metamorph as the spell base he keeps the spells from his previous form. Any ideas anyone?

It's sort of a big step, but making trigger-based responses to spells is kind of a necessary thing both to make much more interesting spells and to smooth over the inconsistencies in Blizzard's original abilities.

Probably a good way to trigger this would be to make a trigger that responds to a unit using the metamorph ability, and replaces the unit with the other unit you want. By replacing the unit, you're escaping the hardcoded bits in the morphing spell.

Not sure if this helps, but this is how I accomplished giving additional skills to a unit when it uses a skill based on Metamorph. I guess you could just reverse it to remove skills.