If Warwick uses Flurry of Blades to move to a battlefield and then uses Ride the Wind during the showdown to move to a second battlefield, does the unit on the second battlefield die without healing from the first combat?

Ruling: No, the unit on the second battlefield will not die without healing. The first combat must fully resolve (including healing) before the second combat can begin.

Sequence:

• Warwick moves to battlefield 1 and triggers attack
• Flurry of Blades is cast
• Attack trigger resolves and first combat begins
• During showdown, Ride the Wind is cast to move Warwick to battlefield 2
• First combat completes entirely (including after-combat healing)
• Second combat is then staged and begins with its initial chain

Nuances:

• Even though the second combat is triggered during the first combat's showdown, it cannot start while the first combat is still resolving
• The second combat is 'staged' and won't get its initial chain until after the first combat completes