sometimes you hit 0 mp after f4, does that happen the same amount in 3.0 and 4.0 rotas? there foul has a slight advantage..

besides ofc always being able to cast it after B3 or transpose when waiting for a mp Tick,...

meaning we might end up holding on to foul, when we see high mp before casting the last fire 4 of a rota, better hold it "for the next rota", incase we have less mp next time, as a filler??