I am not caught up with the manga so I don't know everything happening in the story right now and want to avoid it but after hearing about Vegeta's new form, I couldn't help but do a bit more digging.
If you are not caught up with the manga and care about spoilers, AVERT THY EYES!!!
So Beerus mentioned that "Ultra Ego" is meant to be UI energy and ability stolen from the angels. Because Goku trained more with Whis and was able to unlock this angelic power form, it made sense that Vegeta would go the opposite route. The whole God of Destruction thing balances with the angel and because the GoD is considered to be the more "evil" half, it makes sense that they would steal the UI power from the angels in an attempt to equalize their strength. We know the angels are still more powerful though.
I just thought this was interesting. To have it be introduced as something stolen and have it be energy that involves pain, blood, and destruction makes sense. Like Vegeta isn't a GoD himself but he was able to harness the power like one just like Goku is not an angel but was able to harness the power like one. Goes back to the whole yin-yang balance between the characters and I like it.
If you are not caught up with the manga and care about spoilers, AVERT THY EYES!!!
So Beerus mentioned that "Ultra Ego" is meant to be UI energy and ability stolen from the angels. Because Goku trained more with Whis and was able to unlock this angelic power form, it made sense that Vegeta would go the opposite route. The whole God of Destruction thing balances with the angel and because the GoD is considered to be the more "evil" half, it makes sense that they would steal the UI power from the angels in an attempt to equalize their strength. We know the angels are still more powerful though.
I just thought this was interesting. To have it be introduced as something stolen and have it be energy that involves pain, blood, and destruction makes sense. Like Vegeta isn't a GoD himself but he was able to harness the power like one just like Goku is not an angel but was able to harness the power like one. Goes back to the whole yin-yang balance between the characters and I like it.