"Mini Tornado"
The aerial beasts and monsters' tough feathers and skin, which usually could even block bullets, suddenly became so fragile.
The energy beam created of some kind of energy easily pierced through many unprepared beasts and monsters in the sky, directly piercing their vital organs.
One beast and monster could be targeted by at least three beams, and three beams were enough to completely kill those beasts and monsters.
Blood spurt out from the bodies of these beasts and monsters.
Soon, various blood of all colors rained down from the sky and hit the transparent barrier, dyeing the barrier with a strange color.
SPLASH! SPLASH!
The corpses of those large and small aerial beasts and monsters slowly fell from the sky, and all bodies hit the barrier with a huge bang, as if it was their last effort to break the barrier.