Septication

Septication is a spell solely usable while the Mephitic spellbook is open, and requires level 92 Magic to cast. It is a powerful spell that can hit up to 533 with normal equipment and opponent. It will have a 1/6 chance of high poisoning the enemy (hitting up to 101 damage every 25 seconds). Although a very powerful and capable of poisoning the opponent, Septication is quite slow spell to cast, although a staff of poison will increase its speed by 0.6 seconds.

When this spell is cast, the avatar will turn around and thrust himself at his opponent (whether it be an NPC or another player) and a green screen will cover the opponent for a third of a second, making this spell quite spectacular and very slow.

Trivia

 * Septication, like many spells in the mephitic spellbook, is slower than ordinary spells to make up for the powerful poison effects they have.
 * Septication has one of the most varied rune requirements out of any spell, requiring four different types of runes.