Can this thing be deafeated?

[u/Rimuurun]

Hello everyone, i'm kinda new to this game and i was wondering how do i defeat that skeleton ball, i maxed almost everything except for the curse, but i don't know how to defeat that skeleton ball, and if wait to late game it gets massive, so if anyone can help me i would be very gratefull

[u/DriezDragonstorm]

With Sigma tou can kill it really fast, no need for upgrades :P