Necrosiphon: Twice per long rest, when the wielder successfully hits a creature with a spell while holding the Orb of Varthis, they can choose to invoke the orb, sending out souls of the dead trapped inside that inflict a further (Siphoned Soulsxd4+4) necrotic damage, healing the wielder for half as much.
If the damage inflicted by Necrosiphon kills its target, their soul is trapped inside the orb, permanently increasing the number of Siphoned Souls by 1.
