Snake Magic (all spells must be cast in parsel-tongue)
Hessasgs Zaphenath Paneah- disintegrates one body cell of the victim every second, however the victim is unable to die
Duonolo ex Crucio Tempus duo oblino- makes target suffer under the Crucatius curse until they die, however the spell prevents them from being driven insane and it provides them with food
Duonolo ex Crucio Tempus duo Enderea- ends the eternal Crucatius curse
Prokansis Accolon Asidigion- increases the casters' power by 15
Mors Malum- grants the caster poisonous teeth, eat the fangs and 3 drops of the poison you wish to have
Yakana Kozak Peloquin- summons a snake demon, also requires 3 drops of basilisk blood
Another interesting thing about parsel-tongue is that when you speak it while casting your spells they are twice as strong as normal.