Ultimate Evocation Planetary Asteroid of the Abyss

Ultimate Evocation: Planetary Asteroid of the Abyss

Call upon the abyss's endless power. It takes 3 rounds to prepare, but the effects are devastating. Once summoned it will fall on all enemies, concealed in a shadow aura. The aura is very intense and it freezes the enemies in sheer power. To not be frozen, enemies must make a strength saving throw w/ d20. They must get an 18 or higher. Once it hits the enemies it deals 4d20 force damage. Once it deals damage, it shatters and explodes, hitting all enemies with an explosion of shadow, dealing 2d12 necrotic damage. Once finished, you may not do anything on your next turn, because of the massive amount of power of the asteroid.