XV Episode 8
The greatest, most powerful technique of a Symphogear adaptor - an "absolute invocation."
A song creates an explosive increase in phonic gain suitable for decisive battles,
but in exchange, even the reinforced body clad in a Symphogear receives unbearable backfire - putting life at risk.
The only thing that can reduce the stress of the superb song is increases in link coefficient via training or injections.
If used with a low link coefficient, the expected result would be in cellular rupture and tissue necrosis throughout the entire body.
It can be used directly to release phonic gain, or to strengthen the Symphogear (Armed Gear) and the like,
but the strategy proposed by Carol involved channeling it towards the activation of a massive-scale composite-type relic.