A weird idea for a melmetal deck

I've been running this deck for some battles, and even if it feels like it shouldn't work, I've seen some success with it. The idea is to stall and attack with Kangaskhan while building Melmetal, and have Greninja evo line as another body/use it to take some hits and give the extra dmg missing for KO's with water shuriken (because I don't run water energies). It's like a reverse of the roll compression of Weezing.

And I wanted some opinions about it because it really really feels wrong to run it but more often than not, it works. I know that this is mostly because of how good are Greninja and Kangaskhan but hey, if someone is as desperated as me to run a Melmetal, maybe this is an option.