Petition for new ARAM lobby option: "Reserve"

So another player has a champion you would like to play- but you can't make the trade. The player then re-rolls and the champion is lost.

"Reserve" is an option that would protect champions from being re-rolled into nothingness. How "Reserve" would work:

• "Reserve Champion" becomes an available option if the desired champion is owned, but unable to be traded.
• Once a champion is reserved, no other player can reserve that champion.
• If the "Reserved Champion" becomes subject to re-roll it is granted to the player who requested the reserve. The "requesting player's" generated champion becomes re-rolled on behalf of the "Reserved Champion".
• If the "Reserved Champion" becomes subject to a trade offer, the player who owns "Reserved Champion" will be given three choices: Decline Trade Accept Trade or Accept Reserve
• If Accept Reserve is chosen the controlling player summons another randomized champion, and the "Reserved Champion" is granted to the player who placed the reserve.
• If the "Reserved Champion" is traded it loses its "reserved" status.

Let me know what you think in the comments below!