Sikera Usum profile

Rank: B+
Type: Anti-Army
Range: 1~20
Max Targets: 10 People
A Noble Phantasm that can only be invoked at the throne in the Aerial Gardens of Vanity.
The atmosphere and magecraft receive a "poison," environmental property.
When this Noble Phantasm is invoked, the magecraft Semiramis uses is granted a "poison," attribute.
Heroes who posses legends that say "Poison had no effect" are granted a debuff bonus, on the other hand, if they have an episode where they died to poison, damage is doubled. Different types of poison can be selected as well.
In regards to the image, the poison's appearance manifests as chains.