Ok, now we got a battle in our favor, we have a chance.

Lucifer, First thing i need u to do is rest immeditaly. Then sleep talk the whole way through.

Rylonin, to ensure he can sleep, use a protect if chansey tries to attack him. If not use a mega drain. then use substitute, make it somewhat small. Finally use blizzard.

Lucifer-Rest~Sleep Talk~Sleep Talk

Rylonin-Protect/Mega Drain~Substitute~Blizzard