Fireball

This spell costs {1} more to cast for each target
beyond the first.
Fireball deals X damage divided evenly,
rounded down, among any number of targets.
"If you call yourself an Arcanist and you don't have
this baby in your tool-kit, you're at best a fraud
and at worst merely pathetic." -Heard from a half-
elf delinquent on the streets of Key's Breach