ARAM and Oracle's Elixir
I'm a pretty avid ARAM player (I left SR a long time ago in favor of a gamemode that I could blame RNG on) and with the recent work from Riot in balancing ARAM I figured I'd go ahead and bring this up here in hopes they see it and possibly try some of the changes.
So I'll start out by saying: this is a constructive point of view on the item and a possible workaround to address the issues it brings and helps with. I'm not raging about Oracles Elixir but it's hard to not acknowledge that the 300 gold 5 minute purchase is a cut above traditional stealth detection and does a little more than just "hurt" a champion at times. I'll go ahead and list out the pro's and cons of the current stealth addressing consumable. Pro's: Takes care of teemo's incredibly high power creep in a singular lane with his heavily damaging ultimate. Deals with AP shaco's high powered W fear and damage tool. Con's: Guts AD Shaco as his Q is no longer providing the invaluable kit completion it usually would. Guts all other Teemo builds (Attack Speed Teemo, AD Teemo, etc) by removing his stealth passive (this will still be relevant after his rework if it hasn't gone live.) Makes it significantly harder for Kha'zix, Rengar, and Talon to function as assassins when they can see you through your ultimate.
So the problem is you'd need to create a solution that addresses both Teemo and Shaco's trap builds without gutting the other 5 possibilities but not making them overtly powerful; so the suggestions would be as follows. Vision Plant from SR: There would be four total on each side of the map, one behind the first tower (theoretically) and a second behind the inhib somewhere. The plant bulbs would regrow every 1 minute and 15 seconds and provide the same vision enhancement they do in SR. At max Teemo build he can have a 11 second restock timer on his shrooms so using the plants effectively you could limit his shrooms-on-map to 6 or 7. This is not my preferred work around as people can easily troll with these and abuse them to force your team to lose and so we come to solution 2.
Add Oracle Lens to ARAM. Yes this is a rocky path because up to five people could theoretically purchase this trinket item so to address that Oracle Lens would need to have a gold cost implemented, likely somewhere around 750-1250 gold to ensure it's only being purchased when necessary and not in excess. The cooldown would have to be a flat 90 seconds I believe because with 5 people on a team using it (and it's mobile 10 second duration) you could have a 50 second up time 40 second downtime in proper coordination.
Lastly, how about just adjust Oracles Elixir to not reveal actual player units and only show red silhouettes as the summoners rift Oracle Lens does currently? Akali, Kha'zix, Rengar, Shaco, Talon, etc are all much less fun to play if even one person on the enemy team knows that buying Oracles Elixir will gimp an entire kit element and they typically inform the other players of this fact. The item is vital to stopping a Teemo/Shaco death trap but it shouldn't cause other champions to be nigh unplayable with it's purchase.

trinket that you could pick up instead of the biscuit if you felt like it