Boil and Bubble: Optional Multiple Caster Rules for Effect-Shaping Ritual Path Magic (Patreon)

Boil and Bubble: Optional Multiple Caster Rules for Effect-Shaping Ritual Path Magic | Ravens N' Pennies

It occured to me the other day as I was looking at my rules for my Chronicles of Ceteri campaign setting that the regular rules for multiple casters in Effect-Shaping Ritual Path Magic are kind of anemic. Each caster gives a mere +1? +2 for a critical success.