Marked by Anthrax

Increase your Constitution score by 1, to a maximum of 20.

The dragon's psionic abilities left their mark on you. You learn the minor illusion cantrip. In addition, you learn silent image. Once you cast it, you must finish a short or long rest before you can cast it again. Constitution is your spellcasting ability for these spells.

When you use this trait to cast silent image, you can expend a Hit Die and roll. On an even result, you gain a number of temp hitpoints equal to the rolled number. On an odd result, one random creature within 30 feet of you (excluding yourself) takes force damage equal to the roll. If there are no creatures within range, you take the damage instead.