Comments from the Finger: This cool warlock comes from Damios Azaros, who first recommended it to us on our subreddit!
The Demon's Chalice
Legend tells of an artifact of the icy north, a golden chalice, covered in demonic runes and symbols. Few even know of the chalice, and fewer still have seen it in person, but those who have carried it know that it whispers to its bearer, offering immense power to anyone foolhardy enough to drink from it. With the proper words and incantations, the chalice fills with ice cold blood, summoned from the deepest Abyss.
Essentially, the blood is poison. It infects the veins of whoever drinks it, and confronts them with horrible demonic voices and visions of violence and death. Only the strong can survive the blood and inherit its frigid power.
Demon’s Chalice Expanded Spell List
Spell Level Spells
1st fog cloud, ice knife
2nd levitate, Snilloc’s snowball swarm
3rd sleet storm, wall of water
4th elemental bane, ice storm
5th cone of cold, passwall
Upon forging the bond with your patron at 1st level, a magical tattoo appears on your body, which you can use as an arcane focus for your warlock spells. You can change the damage of any warlock cantrip you cast to cold damage. The mark also allows you to walk on ice and snow as if it was normal terrain.
At 6th level, you can use your power to freeze enemies. Whenever you deal cold damage with a spell of 1st level or higher, you can force all enemies affected by the spell to make a Constitution saving throw. On a failure, a creature is stunned until the end of its next turn. Once you use this feature, you can’t use it again until you finish a short or long rest.
At 10th level, your mastery over ice increases. You gain the ability to fly at your normal movement speed. You must begin and end your movement on solid ground, otherwise you fall.
By 14th level, you can momentarily freeze time itself, allowing you to take an action as a bonus action instead. Other creatures can't use their reactions while you take this action. After using this ability, you must take a short or long rest before using it again.