This description fails to mention that Rage does not consume PP after its first use if used successfully. I really feel like this should be mentioned because it can really change how you may use this if it's left up to interpretation/the reader assumes it does.
There are two (admittedly extremely minor considering this move is complete ass) strategical caveats for the no-PP use of Rage:
- You cannot exit the duration of Rage by waiting for it to burn up its PP.
- You can create a loop where you use no PP but your opponent does, using supportive moves such as Leech Seed and Double Team (in Challenge Cup) to keep this loop going.