Stat & Skill Tweaking Champion

Since can be an in game reason as to why items get removed (He took DFG cause it was to powerful and misused) we could use a champion in game to explain tweaks or changes (this champ would be made as a support but he can be used else where as well). What I had in mind was about three concepts

1) Stat Sharing ADC's suffer from being really squishy or building only AD. This champ can add his own stats to a selected champion for a brief period of time. If they build tank the ADC gets health and armor for a short period. Good for team fighting. To balance this they keep the percentage of health lost so if they lost 50% of their health bar they stay with 50% when it wears off. The support champ could either keep his stats or lose all of his bonus stats when he gives them the buff.

2) Skill Tweaking Don't you wish still had a point and click skill or still had a silence . This new support champion could change the next skill shot (one time use during a short period) into a point and click skill that retains the range of a skill shot or turn the next attack or ability an on hit affect or cause DoT or silence the enemy. Maybe a combination of both. To blanace this the window to use ill be 1-3 seconds and will have a large cool down and/or mana cost.

3) Skill Swapping would't it be awesome (for you not the enemy) if also had an ult. The new support champion would be able to swap the skills between two champions. The way it would work is the last ability used by one champion would be swapped by the last ability the other used. So Yi used E and Olaf used R. Yi's E is now an Olaf R and vice versa. The swap will be temporary. This can either be done in a "change field" similar to AoE spells or maybe even a skill shot that has to pass through two champions. It could also work on enemy champions.

Tell me what you think is a good idea and some other cool concepts.