Alright. We've got nothing to lose here. Let's go down kicking (so to speak)

Rawrza, start things out by using Superpower to jump into the air and punch the ground, where you will at the same time use Earthquake. This will hopefully create an excessively-large crater, at the very least.

Sandy, at the same time Rawrza is doing this, your task is to start Dancing to Start up some Rain. While the rain is happening, Expel heated breath from your dragon Jaws to start creating air currents, hopefully creating a vortex from the resulting hot&cold currents that will absorb oncoming attacks.

Rawrza, you will of course faint from your moves. Sandy, if you somehow survive from the previous Earthquake, use surf to take water from the rain in order to fill the aforementioned crater with water.

So, to recap:

Rawrza: Superpower + Earthquake ~ Faint from exhaustion

Sandy: Rain Dance + Heat Wave ~ Surf

awaiting confirmation from Cynder