Change the Synchronized Self-Biomass Manipulation backfire effect.

[locusts]

I agree, the backfire effect is too punishing and has essentially killed use of this mutation. Change the backfire to vomit, take brute damage, and pass out.

I would also suggest, in the name of balance, to change how the mutation works completely. Instead of mimicking the wizard teleport, it temporarily turns the player into a puddle of water that can move through doors like ghost critters, as well as slip people up. Still useful for breaking into places but you can no longer go through walls.