History of Persys, Primordial Ruin

Persys, Primordial Ruin is a Vex Wyvern of the Sol Divisive, final boss of the Spire of the Watcher dungeon from Season of the Seraph (not Season of the Wish as first noted). The first Sol Divisive Wyvern in the series, it triggers a reactor overload in the Ares Spire; the fight uses wire nodes, reactor purging and cycling shields.