Mercenary Tradeable Contracts

I am absolutely enjoying this league! Thank you for your hard work.

Would you please consider being able to convert a mercenary into a tradeable "contract"? The merc can lose all of the gear when converted to a contract. I just would like to be able to trade mercs of different levels and with different skills.

The tooltip for the contract would need to display the skills and support gems, too.

When I "use" the contract, the mercenary would give me the standard popup for "replace or reserve" and allow me to choose one of my existing mercenaries to replace.

I would consider saving the merc's default gear a lower priority. We could assume the merc replaces their default gear when the contract is used.

It would be great to have an MTX to increase the number of mercenaries available, too!

Also: I would buy someone a beverage of your choice if you would consider a passive skill notable or keystone or unique that says "Increases and decreases to minion life also apply to you at N%". Let's make life stacking minions a thing! This makes a nice parallel with the existing ways to make minion attack speed and damage affect the caster.