"The Second Wave"

BOOM! 

The barrier received its first wave of attacks. 

The various attacks either tried to pierce the barrier, melt it, freeze it, or just try to smash it to pieces. 

PSSHH. 

Some of the attacks vanished right after touching the barrier. 

TSSS. TSSS. 

Some slid down the wall and exploded when it touched the ground. 

TSSS...BOOM! 

The others exploded right when it touched the barrier. 

DRKKK...DRKKK… 

These explosions' impact made the barrier tremble slightly as if about to crumble at any moment. 

However, the attacks never stopped. 

BOOM! 

One time. 

BOOM! BOOM! 

Two times. 

BOOM! BOOM! BLAAR! 

Three times. 

The first wave of bombardment attacked relentlessly. One after another kept coming, with no signs of stopping. 

After all, the attack from 200-ish aerial beasts and monsters were nothing to scoff at. 

BOOM! 

The n-th time.