"Shoots a whirl of 2 opposing spells. Deals Fire and Ice damage to one enemy."
Cost: 6 MP
Source: Eric(a) - Siphoning the Shadow Core.
Fire & Ice is a spell that deals two separate hits of light 
Fire and then 
Ice damage to a single enemy target. If the first hit kills the target, then the second one will hit a random enemy if available.
The individual attacks of Fire & Ice have lower base damage than most skills, but they individually scale with MAT the same amount as most elemental spells as well (it also means the enemy's MDF will apply to each hit). This means that if the enemy has a high MDF close to or higher than Eric(a)'s MAT then the damage will be low, but if Eric(a)'s MAT is significantly higher than the enemy's MDF then the total damage of the spell will be considerably high.
The following enemies can cast Fire & Ice: