What happens if you target the same unit with Bloodharbor Ripper's activated ability and Star-Crossed?

Ruling: You can target the same friendly unit with both effects. Star-Crossed resolves first (LIFO), returning both the friendly unit and an enemy unit to hand. Bloodharbor Ripper's ability then resolves, but because its target is now illegal, the return instruction fails. However, you still play an exhausted Gold gear token because that instruction can be followed independently.

Sequence:

• Activate Bloodharbor Ripper's ability, targeting a friendly unit at finalization
• In the reaction window, play Star-Crossed targeting the same friendly unit and an enemy unit
• Star-Crossed resolves first, returning both units to hand
• Bloodharbor Ripper's ability resolves: the return instruction fails due to illegal target, but you still play an exhausted Gold gear token

Nuances:

• The Gold gear token instruction is separate and not conditional on the return instruction succeeding, so it executes via "do as much as you can."