All affected players should first make the choices, and only then the effects happen all choices first, then all effects simultaneously. And you wouldn't be too wrong for thinking that
If any creatures with banding you control are blocking or being blocked by a creature, you divide that creatures combat damage, not its controller, among any of the creatures its being blocked by or is blocking.) Illustrated by Melissa A
Went down a rabbit hole with these shrines/temples/related objects
Sidequest: Play Blitzball seems quite good, giving a nice power boost upfront and eventually transforming into quite a powerful equipment, World Champion, Celestial Weapon
And on that basis alone, Dark Magician is a card you will almost certainly want to include in your deck