Energy Storm

Card/Unit Stats

 * Rarity: Uncommon
 * Faction: Avalon
 * Spell type: In Combat Only
 * In Combat use:
 * Spell Duration: Three rounds
 * Action point cost: 20
 * Off-faction AP cost: 25
 * Effect: Deal damage to a random enemy: 30 dmg this round; 20 on the next round; and 10 damage on the third round.

tips
Energy storm seems to stick with one particular target in smaller battles unless that target is killed; in which case it picks a new target. In larger battles, it does spread its damage out more (could simply be the decreased probability of hitting the same unit when there are more).

Although the off-faction casting cost is 25AP, it really costs 20AP off-faction, but you must have at least 25AP unused before you are able to use it (i.e only usable by Round 3 of a battle).