Junk Changer (PGL3-EN002) - Premium Gold: Infinite Gold 1st Edition

You can only use the following effect of "Junk Changer" once per turn. If this card is Normal or Special Summoned: You can target 1 "Junk" monster on the field, then activate 1 of these effects;
- Increase its Level by 1.
- Reduce its Level by 1.