Mordenkainen's Sword
The caster summons a powerful, sword-wielding helmed horror that acts as a faithful and loyal servant. It's immune to any damage or spell, accept for pure damage. This horror scales with the caster's main ability score. Performing a hostile action or casting a spell (including drinking a potion) while the horror is summoned triggers a concentration check. If this check is failed, the horror gets unsummoned. Disabling effects will break the concentration instantly without a check. The concentration check uses the following formula: 20 + ((caster main ability score modifier with a max value of 20) x 4) + modifier based on the action done (the spell's level for a spell or potion, 3 for trap actions and taunts, 6 for a healer's kit, 9 for an attack) vs d20 + caster concentration skill check.
| School | Transmutation (opposed by Conjuration) |
| Spell level | Wizard and Sorcerer 7 |
| Range | Short (8 m) |
| Components | Verbal and somatic |
| Can be aimed at | a spot on the ground, an item or a placeable |
| Concentration | Damage can interrupt the casting |
| Area of Effect / Target | Point |
| Duration | 1 round (6 seconds) per 2 caster levels. Extend doubles it. |
| Save | None |
| Spell Resistance | No |
| Metamagic allowed | Extend, Silent, Still |
How it works
- Its power scales with your casting ability modifier, up to +20: Intelligence for a Wizard, Wisdom for a Cleric, Charisma for any other class.
- The blade gets half that modifier, rounded down, as an enhancement bonus on its weapon, as extra Strength and as an attack bonus.
- It gets +1 base attack bonus per 5 points of the modifier.
- From a modifier of 3, its weapon deals extra magical damage: 1d4, then 1d6 from 6, 1d8 from 11 and 1d10 from 16.
- From a modifier of 6, it has Haste.
- Cast from an item, the modifier is fixed at 3.
Where it comes from
Cleric domain: Strength (level 7).
See also
- Magic - save DCs, saving throws and when you cannot cast
- Spells
- Classes