Enchant Crossbow Bolt (Oceanstone)

This spell enchants 10 Oceanstone bolts to give them a special ability. The special ability hits twice, the first hit being the normal hit the crossbow bolt would do, and the second hit causes a circle of fire to burn the opponent, so the second hit counts as magical damage. This special is very effective against the Kalphite queen or Nex as both these monsters can use protection magic (eg Protect from magic) so by dealing a ranged and magic attack, these monsters are unable to full block the attack.