Just to clarify, it's not actually called mutated in-game, despite the video saying so :P

JagexOsborne

Aw man, I got the name wrong, didn’t I? Sorry guys!

Leaves more mystery!

HashTagDeeperino

That's fine. Who cares if it says "mutated" really?

The bigger concern is if it can be used in a wild (which he mentions right after) - that'd immediately pose the same problem as bladed dive on release, which we saw got nerfed because it created such an insane gap in mobility between those with it and those without it. Hopefully he does, as he said, talk to Pi and have that stopped.

You can't use double surge/escape in the wilderness