Magic and Powers:
Spells
Eggy can cast powerful spells of a great variety with the aid of divine power. He can summon fire, lightning, lasers, and more. He has basic telekinesis, but it has limits, one being that if he cannot lift it physically, than he cannot lift it with his powers. He can also reshape and change the durability of the things around him with his telekinesis, whether it be turning dirt into rock, or metal into goo. In order to use these to their full extent however, they require prayers in ancient Egg language. He can still use some of his abilities without prayer because of his holy connections, but it is not as powerful without it.
Regeneration
Over time, Eggy's body can recover from almost any damage, being able to regrow entire limbs within weeks. Of course, it DOES take time, but it is still very powerful. Eggy can even recover from being blown apart, as long as even small pieces remain, he will come back, but this can take months or maybe even year, and has a clear weakness: Burning. While Eggy can take both natural and man-made heat weapons, he can be neutralized when temperatures reach the millions, like the insides of stars, where his regeneration is numbed by the constant burning. Although this technically doesn't kill him, he will be stuck in this process of regeneration and reburning until he is extracted, or until the death of the star in a few million years. He also cannot fully regenerate powerful damage from EXTREMELY powerful magical weapons, hence why he has a mechanical arm, but these cannot kill him, as he will be brought back to a point where he can at least function normal-ish.