Does it matter in what world im summoning the monsters? or do I need to be in the Duel monster series?
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anoymous
No, you need to be an idiot in order to meet the requirement
anoymous
Depends on the quest requirement. If it specifically states "in DM" or "in GX", you can only do that quest in that specific world.
If not (like in the case with Ishizu), it doesn't matter where you complete it.