Burning Death of the Thrice Doomed Covenant
CrIg 80 Ritual
R: Arc, D: Diam, T: Boundary
Does +30 fire damage to everything within a defined boundary (such as a covenant) not to exceed 900 paces in diameter every 6 seconds for two minutes (20 rolls). This is hot enough to melt stone. Requires an arcane connection to the targeted area. Even if a victim somehow manages to resist this spell, unless outside in a large open area survival is unlikely.
(Base 25, + 4 range, +1 Duration, + 4 Target +2 size)
A spell best cast under wizards communion (for some very impressive penetration total). I would not be surprised if having a casting tablet for this spell were to be considered a low crime.
No real point to this. Just trying to get some discussion going of Wizards Communion and high level ritual spells.
(BTW Cr 20 Ig 40 MMF Damage (+10), Magic Theory 10 + 4 Int + 5 Aura + 5 lab bonus, +6 apprentice = Lab total of 100 so it is inventable for an ArchMage).