Idea for Legendary Dragon spawn skin

So this idea i feel like would add a really fun aspect to the game. It would give players extremely rare skin.

So my idea is that a random rare spawn dragon appears instead of the legendary dragon. The screen flashes a message so all players are aware. Abd there is a countdown timer that appears. The legendary dragon will do more damage and have more health. The team that is able to kill the dragon wins tge prize. Each winning player gets a dragon scale.

The dragon scale can be turned in to collect ANY champions EPIC DRAGON SKIN. Riot would need to create this skin for every champ of course.

The fight around the dragon would be anazingly intense cuz everyone would want the dragon scale prize.

They could make a new skin every season.