Man, clearing from Stage 7 is super tough...

I was so dumbfounded I couldn't even take a picture ㅠ The enemies in Stage 7 have way too much HP... I kept upgrading my arms and hit 1500 damage, but by the time I got near the boss, their HP was so high it took 3-4 hits to kill them.... Up to Stage 4, just having two attack speed > attack power upgrades was enough... Now it feels like I need to get attack speed or critical hit from gear and just focus on increasing attack power... I started feeling it a bit from Stage 4, but range seems meaningless; it looks like I'll have to push through with a combination of attack power + critical hit + attack speed... Skills also have long cooldowns and are mostly support, so I think I'll have to invest minimally to clear it...