How much damage deals Magma Storm at each phase?

Question

In first phase, damage for a 120 power special Fire move (+-STAB, etc).
But in second phases...?

Answer 1

It is the same amount of damage during every phase. 120+ stab. that's why it's only 70% accuracy. I'd hate for someone with a grip claw to use this...

Comments

Well, that's why I was aking on Grip Claw:)) THX

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Once it hits once, does it hit every turn? Or is the accuracy 70% on each turn?

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Well, after foe is already trapped...