Boss - Metal Mage Lord

Metal Mage Lord is a potential 4th boss that can appear on wave 40.
===Attacks===
Melee attack
Spikes of metal
===Strategy===
Don't want to have a bad time against this boss? Keep moving around to dodge the spikes, as long as everyone do this, killing it shouldn't be hard at all.
This boss doesnt have headshot, so it's surely going to take some time if there aren't any high lvls.