Espylacopa's Sceptre is a magic weapon that has a 20% (1/5) chance of being dropped from Espylacopa in the Apocalypse event. It appears to be the same sceptre that Espylacopa uses in her second phase and has the same effects.
When used, the sceptre will cast a ray of darkness in the direction it is pointed. This ray deals 65 damage and has a 40% (2/5) chance of inflicting the Weak debuff.