Hero's Call

Hero's Call (主人公のコール, ˈhirōkôl; also known as "Slayer Maker" is a rare support type sacred gear wielded by Asuna Lucifer, the sister of Ichiro Lucifer. The sacred gear has the ability to turn the wielder, objects, or people into different types of slayers. First revealed in Life 22 when Asuna used it on Ichiro.

Summary
First used in LIfe 22 against Masquerade when Asuna turned Ichiro into a [Angel Slayer] type. If used incorrectly the sacred gear could be disastrous to the wielder but is a great weapon when used to attack your opponent's weakness. The only drawback to this sacred gear is that if another sacred gear is already being used on the person then this sacred gear cannot take effect.

Appearance
Hero's Call has no physical form in the form of a object or weapon but takes the form of a tattoo that appears on the wielder's arm. This tattoo can then be transfer to another person or object giving them the type of slayer capabilities.

Abilities
Hero's Call main ability is to turn someone or an object into a type of slayer with the exception being Gods and Buddha Slayers.

EX: The wielder can turn someone into a [Devil Slayer] giving them holy energy similar to that of a angel. or a [Angel Slayer] giving them demonic energy similar to that of a angel. [Dragon Slayer] filling them with dragon energy similar to that of a dragon which will make killing dragons easier.

This sacred gear is really used in a way to attack an opponent's weakness by turning their weapon or teammates into the weakness of their enemy. The drawback is they can't turn someone or an object into a God or Buddha slayer and this sacred gear can only be used twice at the same time (on two different objects or people).

The sacred gear works like this: (1.) the tattoo appears on the sacred gear wielder's arm turning them into a slayer (2.) if they decide to transfer this to a teammate or object then the tattoo will transfer to that

The subspecies balance breaker called [E-Emergency Provision] that allows them to turn more than two people or objects into different types of slayers based on the amount of damage they received and can even use multiple slayers on themselves.

Hero's Calling
The sacred gear standard form, is a type of tattoo depending on the type of slayer the wielder gets turned into.

The subspecies balance breaker takes the form of multiple slayer tattoo depending on the type of slayers they use.