My current issue with Polymorph as cool as it is.

Is that it SEEMS to step on a lot of skills toes and does nothing unique itself mechanically.

It even has a teleport which would be the 4th skillset that has a self-teleport.

But we haven't had our hands on it yet. So everything I say is just fear.

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If I had to guess what Polymorph is trying to go for tactically...

It is a skillset that is based around keeping to a target. Pull them towards you, bring yourself over there.

With a strong focus on self-buffs and set ups.