Requirement: Perform 1 rank
Base effect: All allies within 30 feet gain a +1 morale bonus to critical confirmation rolls and damage rolls on critical hits. This bonus becomes 1 point higher at 5th level and every 5 levels thereafter (maximum +5 at 20th level).
You call into being floating blades made of force which you can direct at opponents within 100 feet of you. Each weapon can strike a different opponent, as long as they all are within 30 feet of one another. To attack with a weapon, you perform a ranged touch attack, using your siren level + your Charisma modifier as your attack bonus. These weapons threaten a critical hit on a roll of 19 or 20 and deal double damage on a critical hit. Each weapon adds your Charisma modifier to its damage roll. These weapons are force effects and inflict full damage to incorporeal and ethereal creatures. After the attack, regardless of the result, the weapons disappear.
Weak Refrain: Summon one force dagger for every 3 siren levels (maximum 6 at 18th level). Each weapon deals 1d4 points of force damage.
Intermediate Refrain: Summon one force longsword for every 2 siren levels (maximum 10 at 20th level). Each weapon deals 1d8 points of force damage.
Strong refrain: Summon one force greatsword for every 2 siren levels (maximum 8 at 16th level). Each weapon deals 2d6 points of force damage.