Ritual spellcasting
p. 174
Force of lodge limits force. All must be same tradition. Max members is force of lodge or the lowest skill.
Targeting
Needs line of sight through a spotter doing astral tracking. If broken the spell fails.
Team leader
The leader's magic + ritual spellcasting is the base dice pool. Spell force is limited by leader's magic rating.
Other members roll tests and add their successes to the leader's pool.
Noticing ritual spellcasting
Intuition + assensing (20 - force, 1h)
Drain
All members resist drain including the spotter.