Round 1:
frylock vs. c0n5p1r4cy
Pre-Battle Set-up:
In the deep darkness of a solemn cave, devoid of even the rock icicles that would give life to these barren walls, that is where we find two battlers, rearing for action. But not before the Green-clad referee steps in from the shadows. The match is set, a 2 on 2, with 1 out at a time. With that said, two pokeballs are thrown, each realeasing a tyrogue. From frylock, a male named Vamp. From conspiracy, a male tyrogue by the name of Ezekial. The trainers issue their orders, and this match has begun!
Stats: Start of Round 1

Vamp (m)
Health:100%
Energy:100%
Status:Battle Ready!
Earthquake~Seismic Toss~Double Team
vs.

Ezekial (m)
Health:100%
Energy:100%
Status:Battle Ready!
Double Team~Bulk Up~High Jump Kick
The First Round begins...
Now to begin what appears to be a very heated fight, with both fighting pokemon at the ready. Ezekial starts things off by concentrating his energy into producing several clones. Vamp replies by smashing his foot into the ground, producing a shockave that starts to rock the cave. This proves both a good and bad decision, as falling debris and the shaking clears out the clones and hits the true Ezekial, but the falling rocks turn out to be a little too much and even his Vamp himself.
This does not bode well for Ezekial, as he puffs out his chest and gets all haughty, raising several stats, only to be grabbed by Vamp, who proceeds to jump into the air and toss his opponent down to the ground, smacking onto some rather nasty rocks.
Ezekial gets up, not liking the outcome of this roun so far, and jumps into the air, only to watch in mid-air as Vamp splits up this time, and as he passes through the clone, he immediately smashes into the nearby wall, causing some damage as the round comes to a close.
Stats: End of Round 1

Vamp (m)
Health:96%
Energy:85%
Status:3 clones remain
vs.

Ezekial (m)
Health:87%
Energy:92%
Status:Unhappy
Frylock attacks first.
Oh, and to answer your question, no, weather effects do NOT take place in a cave.
~GL