New Sorcery Keystone Idea: Soulflare
Soulflare is intended to be a replacement for Deathfire Touch, while taking that whole "power without gameplay" crap out behind the barn.
Damaging abilities burn the target for a small amount of adaptive damage over time (Will have AD and AP ratios, but AP ratio will be far superior) and inflict enemies hit with Soulflare. Each stack of Soulflare increases the damage of the burn your abilities cause. Damage over time can only grant up to 3 stacks per cast per enemy. Soulflare has no maximum amount of stacks. After the burn is finished, 1 stack falls off per second