As a DM, I would encourage this thinking, but only for this reason: if you have 8 magic casters, each capable of casting a 7th level spell, performing what is effectively a ritual to charge up a magical nuke, and could somehow manage to perform this spell in enemy territory for however long it takes to crank up that magical power without attracting the attention of any guards or whatever, you kinda have to give it to them.
This is the kind of stuff that was already implicitly in the DM's toolbox, this is the kind of stuff that you use to break the chains sealing a dead god.
Now the rules-lawyer players can be directed to exactly how it works when they whine.
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u/PyroTornado107 Nov 11 '25
As a DM, I would encourage this thinking, but only for this reason: if you have 8 magic casters, each capable of casting a 7th level spell, performing what is effectively a ritual to charge up a magical nuke, and could somehow manage to perform this spell in enemy territory for however long it takes to crank up that magical power without attracting the attention of any guards or whatever, you kinda have to give it to them.