Siren's Tower/New Trial of the Bewitcher

Abilities

 * Cure: Heals 120,000 HP to caster.
 * Lunatic Voice: Magic damage to all enemies, and inflict sleep to all enemies.
 * Water: Water magic damage to one enemy.
 * Waterga: Water magic damage to all enemies.
 * Sleep: Inflict sleep to one enemy.
 * Silence: Inflict silence to one enemy.
 * Protect: Increase DEF to caster.

Tips

 * See testimonials and discussions.
 * Siren has much, MUCH less HP than other 3★ espers. e.g. She has 97.6% less HP than 3★ Ifrit.
 * Bring a magic cover tank to mitigate most damage. Use reraise or guard against her threshold attack on 80/60/40% HP.
 * Uses Lunatic Voice at thresholds at 80/60/40% HP.
 * While her threshold attack is non-elemental, the rest of her magic attacks are water elemental.
 * Bring protection or cure against sleep and silence.
 * Use DEF/SPR break, and bring dispel if you are using physical attacks as she buffs herself with DEF +100%. Though due to how weak Siren is, this is not necessary and you might want to keep her alive just for the evoke mission.

Battle Dialogue

 * Siren - New Trial of the Bewitcher Dialogue