A character can normally maintain only one concentration spell at a time. This tool checks a planned set of effects and flags casters who have been assigned more than one.
Planned effects
Columns: caster · planned concentration spell/effect.
Result
Check the planned loadout.
What counts as a conflict
If two planned effects depend on concentration from the same caster, activating the second normally ends the first. Move one effect to another character or choose a non-concentration alternative.
Plan across the party
Concentration becomes easier to manage when each caster has one main persistent effect and several non-concentration actions to use around it.