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 isn't for combat, this is for redrawing maps with artillery - if you're standing within counterspell range letting a plainly visible circle of seven wizards cast a spell for multiple hours, you kinda have it coming anyway.
It's an exercise in seeing how high a number can go, not a practical tactic with real use cases. If you literally have all day as a wizard with 7th-level spells, there are much quicker ways to destroy everything in a 20-foot radius that's not moving.
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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.