Duplicate Decoy

As part of the casting of this spell you move 5 feet (+5 feet per size category you currently are beyond Medium). You become invisible for the duration while an intangible, illusory duplicate is created in the original space from which you began casting this spell; to all other creatures, it appears as if you never left the original location from which you began casting this spell. If you make an attack or cast a spell, the spell ends, causing you to become visible and your duplicate to vanish. The duplicate’s AC equals 10 + your Dexterity modifier, and it is destroyed on a hit. It ignores all other damage and effects. The duplicate can take no actions other than moving; you can take a bonus action to mentally command the illusory duplicate to move up to your speed.