Strike Specials

A new specials concept:

Rising Strike Special
Cooldown: 4
Attacks a foe within 4 spaces. Deals (unit’s Atk - foe’s Def/Res) damage to foes in those tiles.

Blazing Strike Special
Cooldown: 4
Attacks a foe within 4 spaces. Deals 1.5 (unit’s Atk - foe’s Def/Res) damage to foe in those tiles.

Growing Strike Special
Cooldown: 4
Attacks a tile and adjacent tiles up and down (like a mini Thunder) within 4 spaces other than foe. Deals (unit’s Atk - foe’s Def/Res) damage to foes in those tiles.

Explanation:
The Strike series of AOE specials is different from normal AOE specials. Like how when you initiate combat, the special hits. When you initiate combat and get into combat position, you aim your special at any foe within 4 spaces. That foe then gets hit by the special. Then combat happens and you attack your original targeted foe, who you didn't necessarily have to hit with your special. Growing Strike is like Rising Strike, except it also hits foes above and below, like a mini Thunder.

Any ideas on how to balance this/make this viable?