@Keefdreewill thank you, but in my opinion it's not just smart it's practical, cause if I'm at Mxy's level of powers but without his cartoonish or comedic sensibility, I mean you can look up what Joker did with 99.9 percent of his power alone right there is not only cause for concern but it's extremely terrifying plus even though Mxy thought his powers were beyond Doctor Manhattan's, Manhattan thought he was a serious enough threat to lock him away meaning his powers nearly or are near enough to threaten his.
So the way I see it, the powers are just enough to let me do whatever I want within my own reasonable limitations and limits but strong enough that outside forces would have to think very long and hard before making moves against me. As Mxy eventually got free of his prison after a certain amount of time but still out and free to go toe to toe with Manhattan if it came to it.