Question

What does "Raises The Users (Certain Stat Here) by 1 stage mean?

Answer 1

It means that the stat has gone up one stage. There is a multiplier:

+1 stage: x 1.5
+2 stage: x 2
+3 stage: x 2.5
+4 stage: x 3
+5 stage: x 3.5
+6 stage: x 4

Comments

So that's what it means.

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Oh really? So two calm minds would raise your sp atk more than one nasty plot?