Beyond Light

The caster is able to use their mystic arcanum to cast this spell as either a 6th, 7th, 8th, or 9th level spell. 

The caster is able to use all of their stored life force to create a beam of light, which deals radiant damage to anything it hits. Damage, range, and AoE is scaled based on how much life force is used. The base damage of the spell is either 2d4 (6th), 2d6 (7th), 2d8 (8th / 9th), 60 range, and no AoE. Charging time takes 3 turns. On turn 1 Life Force pool is immedietly restored to full if it isn't already. On turn 2 life force is pushed to 1.5x the limit. on turn 3 life force is pushed to 2x the limit and caster is able to cast the spell. 

Every 20 life force used (6th/7th) or 10 life force (8th/9th) can allow to buy a single upgrade to the spell beyond the starting 

-  an additional 1d4, 1d6, 1d8  damage depending on whether or not the spell is cast at 6th, 7th, (8th, or 9th) level

and

-  an additional 5 range (6th/7th level) or 10 range (8th/9th level) (up to 90 range maximum) 

or

- an additional 1m (6th/7th level) or 2m (8th/9th level) range of aoe (up to 20 meters total)