||MaterialMaterial: A material component is one or more physical substances or objects that are annihilated by the spell energies in the casting process. You must have the required items in your inventory. If you run out of the components, the game will not allow you to cast the spell and will instead inform you of what component is missing., SomaticSomatic: A somatic component is a measured and precise movement of the hand. You cannot cast spells that require this component if you cannot move causing arcane spell failure resulting in a ruined spell. Spells without a somatic component may be used with disregard to Arcane Spell Failure chance. Note - that characters make the same arm gestures for most spells in DDO, so you can't tell which spells require this component by watching your character's animations., VerbalVerbal: A verbal component is a spoken incantation. You cannot cast spells that require this component if you cannot act or speak. This has no gameplay applications in DDO, as all characters can always speak and there are no effects which prevent you from doing so.