The elders/ancient ones

The elders were presumed to be dead but were only mortality wounded, so they all decided to persevere themselves and heal, so they constructed 5 giant orbs in the center of different galaxies and have been in there for thousands of years, and they can only be set out until all 5 orbs are activated. There are 3 types of elders:

Human sized elders

Planet sized elders

Galaxy sized elders

The elders were only let free because 4 of the orbs were already active but Jack discoveryed the 5th orb and activated it, setting the elders free.

Fun facts:

The elders love the human species

The elders watch the wars of different galaxies for entertainment

The galaxy sized elders are technically not galaxy sized but are really big