Take the story and run with it

[WanderingMerlin]

MC dies at a comic con during a terrorist attack after a conversation with a disguised OAA and is offered a chance to reincarnate with 3 wishes.
Wishes are 1 A system with an omniversal store (starts with status and store access only)(store would allow purchase of diminsional/hidden spaces like PJO olympus/campHB HP hogwarts/diagon alley, raw materials, origin sparks chi/chakra/aura/mana, skill books, technology, portal connections, among other things) . 2 the ability to store anything in a 2D space (would use playing cards + momentum going in = momentum coming out). 3 A soul-bound mate-bonded dungeon core(if she dies he dies but she can bring him back)(she still has to follow basic dungeon rules like not just encasing her core in solid granite 100ft under ground her core has to be technically accessible)

 

[CharlesEBrown]

After ticking off several Beyonders accidentally (whom he slaps around with some effort), he draws the simultaneous attention of God Emperor Doom and the True Form of Darkseid, who fight for a little while, then realize that, alone they can't stop him, just fight him to a stalemate, so they gang up and beat him as easily as he did The Beyonders. This takes about 100 chapters, with about 20 in the style of DragonBall Z "power up" issues.