Time Elemental

Magic Resistance. The elemental has advantage on saving throws against spells and other magical effects.

Inconstant Location. Once during its turn, the elemental may teleport into the future, disappearing and reappearing in any location within 60 ft.

Time Itself. As beings manifested on the plane of time, they are immune to magical effects that manipulate time or provide future insight into their actions such as time stop, foresight, slow, or a divination wizard’s portents. Any such magic used around a time elemental functions as normal, the elemental is just not effected by it.

Innate Spellcasting. The elemental’s innate spellcasting ability is Intelligence (spell save DC 17). It can innately cast the following spells, requiring no material components:

At will: guidance, legend lore

3/day each: hold person, slow, banishment

1/day each: time stop, foresight

Rapid Decay. Melee Weapon Attack: +8 to hit, reach 5 ft., 1 target. Hit: 36 (8d8) necrotic damage, and the target ages 2d10 years.

Timeline Disruption. The elemental teleports all creatures within a 60 ft. radius of itself forward in time, moving them to any location it chooses within the same 60 ft. area. The new location can not be one that puts the creature in direct harm, such as over the edge of a cliff or in a blazing fire. All creatures moved in this manner must succeed on a DC 17 Intelligence save or become disoriented. A disoriented creature acts as if under the effects of a Confusion spell for 1d4 rounds.

Recall (1/day). The elemental recalls future and past versions of itself to aid it in battle. 1d6 time elementals appear within 120 ft. of the elemental. These time elementals all share the same HP total as the original elemental and whenever one of them takes damage or is healed, they all take the same amount of damage or restore the same amount of HP. The original time elemental may disperse the summoned elementals back to their original timelines as a bonus action, causing all summoned copies to disappear.