Grinding in the Dungeon.

"Just 30 minutes should be enough." He said to himself as he rushed forward.

That should be enough time for the army to get a foothold in the dungeon. 

Meanwhile, he is to face the hordes of angels. It wasn't a chore for him. He had a smile on his face as he decimated every attack sent into the tunnel. He was like a little giant. Even his very steps created shockwaves that destabilise the enemy.

Things were not like the first time he entered the dungeon. They couldn't anticipate him this time around. One moment they are matching into the tunnel in an imposing manner, the next moment something slammed into them and then they feel nothing.