You have refined your mastery of illusion magic to such an extent that the boundary between reality and illusion blurs for your enemies. You gain the following benefits:

• When you cast an illusion spell, enemies have disadvantage on their saving throws to disbelieve it for the first round.
• As a bonus action, you can make yourself appear as though you've teleported up to 30 feet to an unoccupied space that you can see. You don't actually move; this is an illusion. Anyone who interacts with the space you seemed to teleport to can make an Intelligence (Investigation) check against your spell save DC to recognize the illusion.
• Once per long rest, you can imbue an illusion spell with an aura of authenticity, making it impossible to disbelieve for 1 round. This feature doesn't work on spells higher than 3rd level.

This feat would be especially useful for spellcasters who specialize in illusion magic or deception.