TLDR Guide for Master Goblin, Tina and Kartgriff Mechanics

Goblin: Same as hard, just remember the thunder shield can only be held up for 10 seconds total, and breaks upon hitting the orb. The best strategy is for tank and healer to pick up the shields while DPS continues fighting.

Tina: Gather together in a circle for the stomp attack. Kill the clone that starts walking first first. Pass void sigil between DPS (dont give it to healer) and once it is close to detonating give it to tank. Seperate during the flurry attack. The "No one can be saved" attack after clones is a damage check, it cant be dodged but wont one shot if no clones reached her. Also you can jump over the megamorph spear's wooden handle.

Kartgriff: Same as hard, but two noticable changes. The first is that during the dimensional shift you want to group up and focus the enemies in the dome, and that the beam does more damage the longer u tank it.