Toxin that may inhibit ion channels. Expressed by the venom gland. The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin. Several paralogs that code for the same precursor are shown in this entry, whereas an additional paralog is shown in AC S0F1N2. Belongs to the neurotoxin 08 (Shiva) family. 02 (omega/kappa toxin) subfamily.