Based off effects alone.

Effect: Deals darkness elemental damage and terrorizes all enemies in range.
Effect: Fires a barrage of life-leeching bolts, draining HP from all enemies within range.
Effect: Pronounces doom on all opponents in range.
Effect: Deals damage to all opponents in an area of effect. Additional effect: Sleep & Magic Evasion Down.
Effect: Violently thrashes with roundhouse kicks at opponents in front. Additional effect: Knockback.
Effect: Fires a barrage of light enchanted arrows. Additional effect: Knockback.
Effect: Delivers an area attack that deals triple damage. Damage varies with TP. Additional effect Stun. AoE range 10-11 yalms.
Effect: Blows enemies away with a powerful blade slash. Additional Effect: Knockback.
Effect: Throws an axe infused with explosive napalm.
Effect: Deals light elemental damage to opponents in an area of effect.
Effect: Terrorizes all enemies in range with a powerful ice-based attack.
Effect: Deals fire elemental damage to opponents in a sweeping arc.
Effect: Deals AOE damage and Paralyze to enemies in range.(cone)
Effect: Drains the life from enemies within range.
AoE Terror, AoE Drain, AoE Doom, AoE Sleep and MEVA Down. These 4, look like they would be either unable to land on anything at all, ever, or they would be super overpowered. Which means their chances of being implemented are as good as BLMs being able to cast Death, or even if they were implemented, every additional effect would have the same chance of taking effect as the broken BLU spells do right now.