Two of these are considered pinnacle bosses;The Searing Exarchand The Eater of Worlds.
If you arent sure how to deal with the Eaters beam phase, were here to help.
There are huge tentacle slams, massive lightning explosions, and various projectiles to dodge.

Touching one of these will heavily slow you.
Stand inside them for too long, and you will instantly die.
Then, it explodes and kills you.

you might see the difference above, where the orb on the left has just been charged.
Do this on every purple orb, and the beam will dissipate.
you could also earn another invitation by completing 24 Tier 14+ maps with The Eaters influence.

Keep in mind that this second, repeatable version of the fight is tougher.
Thats everything you oughta avoid getting swallowed by The Eater of Worlds!
Speaking of the other bosses, we have guides to all three now.
Check out our guides toThe Infinite Hunger,The Black Star, andThe Searing Exarchif you need a hand.