So lets say I am in a battle with a Dragonair and a Magikarp.
First turn: Dragonite uses Dragon Dance.
Magikarp uses Splash. But nothing happened!
Second turn: Dragonite uses Splash. But nothing happened!
Magikarp uses Yawn on Dragonite. Dragonite is drowsy.
Third turn: Dragonite uses Splash. But nothing happened!
Magikarp uses Will-O-Wisp. Dragonite is burned!
(Just example so chillax.)
^ Now at the end of the third turn, what will happen?
Will the Yawn's effect fail since Dragonite already has burn, or will the Yawn's Sleep status replace Burn since it was used first and (maybe?) locked on to a potential Sleep until switched out?