Eldritch Crystal by Glorac

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### Eldritch Crystal

##### Wondrous item, Very Rare

*This crystal contains unstable eldritch energies that can be used to alter the composition and effects of a warlock's eldritch blasts.*

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***Caustic Blast.*** The damage type of your Eldritch Blast becomes acid. Additionally, whenever you hit the same target with three or more beams in a single turn, creatures of your choice within 15 feet of the target must make a Dexterity saving throw versus your spell save DC. On a failure, they suffer half of the acid damage dealt to the original target.

***Chilling Blast.*** The damage type of your Eldritch Blast becomes cold. Additionally, whenever you hit the same target with three or more beams in a single turn, the target must make a Constitution saving throw versus your spell save DC. On a failure, the target's speed is reduced by half and they cannot take reactions until the beginning of your next turn.

***Corrupting Blast.*** The damage type of your Eldritch Blast becomes necrotic. Additionally, whenever you hit the same target with three or more beams in a single turn, the target must make a Constitution saving throw versus your spell save DC. On a failure, the target's maximum hit points are reduced by an amount equal to the necrotic damage dealt for one hour, and they cannot regain hit points until the end of your next turn.

***Forceful Blast.*** The damage dice for each of your Eldritch Blast beams change to 1d12. Additionally, whenever you hit the same target with three or more beams in a single turn, the target must make a Charisma saving throw versus your spell save DC. On a failure, the target is marked until the end of your next turn. Your Eldritch Blast attack rolls have advantage against targets marked in this way.

***Mental Blast.*** The damage type of your Eldritch Blast becomes psychic. Additionally, whenever you hit the same target with three or more beams in a single turn, the target must make a Wisdom saving throw versus your spell save DC. On a failure, they are frightened of you until the end of your next turn.

***Radiant Blast.*** The damage type of your Eldritch Blast becomes radiant. Additionally, whenever you hit the same target with three or more beams in a single turn, the target must make a Constitution saving throw versus your spell save DC. On a failure, the target is blinded until the end of their turn.

***Searing Blast.*** The damage type of your Eldritch Blast becomes fire. Additionally, whenever you hit the same target with three or more beams in a single turn, the target must make a Dexterity saving throw versus your spell save DC. On a failure, the target is set on fire. A target on fire in this way takes an additional 1d10 fire damage at the start of their turns. A target may repeat the saving throw at the end of their turns, ending the effect on itself on a success.

***Shocking Blast.*** The damage type of your Eldritch Blast becomes lightning. Additionally, whenever you hit the same target with three or more beams in a single turn, the target must make a Dexterity saving throw versus your spell save DC. On a failure, lightning leaps from you to the target, linking you until the end of your turn. While linked, you may use a bonus action to cause the target to automatically suffer an additional 2d10 lightning damage.

***Toxic Blast.*** The damage type of your Eldritch Blast becomes poison. Additionally, whenever you hit the same target with three or more beams in a single turn, the target must make a Constitution saving throw versus your spell save DC. On a failure, the target is poisoned until the end of your next turn.

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