If Yasuo deals damage to a unit with his when-attacking effect, then returns home using Ride the Wind during the showdown (before combat damage), does the damaged unit still heal during combat cleanup?

Question

Accepted Answer

Ruling: Yes, the damaged unit heals during combat cleanup. Once a combat showdown begins, combat cleanup occurs regardless of whether combat damage is assigned, and units heal during the combat resolution step.

Sequence:
- Yasuo attacks and deals damage with his when-attacking effect
- Yasuo returns home via Ride the Wind during showdown
- Combat damage step is skipped (no units present)
- Combat cleanup still occurs
- All damaged units heal during combat resolution step

Nuances:
- Combat cleanup happens whenever a combat showdown is initiated, even if combat damage assignment doesn't occur
- A combat is only completely skipped if it's staged and before it starts, the battlefield has units from 1 or fewer players remaining