By the end of dragon ball Z Goku essentially ascends to god status and has the power to blow up entire solar systems at will... Only thing in destiny that could touch him would be vex in the vault because they can just un-write him from reality
English
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Or just get the Dragonballs and wish him gone. They have the manpower to hunt for them.
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They've already gathered the Dragonballs, but at the same time they have yet to gather them. That's how they roll.
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Are we assuming that both full universes are there or goku is transported to the destiny universe? Can the vex even speak English to summon shenron?
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But if he is already a god, they can't.
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If Goku doesn't destroy them first... lol