Sorry for the delay in getting back t'you - unfortunately not; as it was with the mine ambush, to keep it under control, Echoes from participation are limited to just the one, though it can be played/implemented as a canon reoccurrence Echo.

Meanwhile, in regards to the Master Spark spell, it'd still be best to put it on hold awhile longer - we'll definitely make it a point to give you the word when the time's about ripe for the game to get ready for Marisa and her Master Spark.