The funny thing is that the description was originally perfectly inclusive, even in its first generation where Onix & Glalie were the only non-armed pokemon that could get it
In RS (also Emerald by extension) it was: Blocks the foe's way to prevent escape.
it was only starting with FRLG (brief pit stop to Emerald aside) that it started specifying "arms"
In RS (also Emerald by extension) it was: Blocks the foe's way to prevent escape.
it was only starting with FRLG (brief pit stop to Emerald aside) that it started specifying "arms"