When Icathian Rain assigns multiple instances to units and one unit dies mid-resolution, what happens to the remaining instances if Sett the Boss's effect is used to save that unit?

Ruling: When a unit dies during Icathian Rain resolution and is saved by Sett the Boss's effect, the remaining instances that were assigned to that unit continue to target it after it returns to play.

Sequence:

• Icathian Rain instances resolve in last-in-first-out order
• The last assigned instance resolves first (instance 6 hits Pit Rookie)
• Then instances 5, 4, 3 hit Qiyana
• After instance 3, Qiyana dies and Sett's effect triggers, returning her to play
• Instances 2 and 1 continue to hit Qiyana
• Qiyana dies again from the remaining damage