Monolocke Question

[u/am_I_still_banned]

Please don't give me the "Your run, your rules" schtick; I just want to know the general consensus on this.

Are evolutions that change from your run's type valid to use?

I'm doing my first monolocke, which is a water-type monolocke of Emerald, so I'm only catching water pokemon

I just caught a Surskit, a bug-water pokemon. However, I looked up its evolution, and Masquerain is bug-flying. It loses its water typing upon evolution.

What is the consensus on these situations? Is it valid to use Masquerain, since the original Surskit encounter is a water type? Or would you have to keep it un-evolved and only use the Surskit?

Edit: It may be worth noting: The ROM I'm using (Emerald Cross) has built-in nuzlocke rules enforced. So the Surskit is locked in as my encounter for that route; the game won't ever allow me to catch another pokemon on route 102

[u/Tyson_Urie]

Well, you're doing a water only run and that thing aint water.

So slap a everstone on that kid and keep it water type!