Slamming the arch into the ground, you create an illusory doorway of thunder within 10 feet of yourself. All chosen creatures within 60 feet must make an Intelligence saving throw or believe that their greatest desire is within the doorway, and they must reach it at all cost. Once a creature touches the archway they must succeed in a Constitution saving throw or take 5d8 thunder damage, or half on a successful save. Any creatures not made an exception by the caster that end their turn in the arch must reroll their Constitution saving throw or take the same damage.
The effect can be interpreted as the creature naturally would; however, their interpretation must include that they want to go within the arch to attain their goal, with the knowledge that the gate is limited. The creature is not prevented from attacking or casting spells, only that their ultimate goal is to be within the arch. The effects of the spell end whenever: the creature takes damage from the spell, concentration is lost, the caster of the spell damages them, or 1 minute goes by.
The caster can choose to exclude a number of people equal to their intelligence modifier from the effects of the spell within range (the caster unless they remain inside of the Arch).
At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th, and you may exclude one extra creature by spell level.
Comments