Supes amd ion alone could do it! Unless the Dbz universe cheats and they have to fight against people who have imortality. Majin buu(Full powered form) could hol dhis own against some of those. Supes dislikes magic and Buu ripping holes in different dimensions, also if he regenerates and if he ever absorbed one of them!!
But come WTF, IONNNNNNNN you got a little carried away with him and supes 1 mil..oh and 2 weeks of prep is gay! If the Dbz team gets prep too then they all wish for imortality and shit on Supes team.
Anyway the creepy over powered Dc team 734657346763/10