What restrictions I would like to see from possible missions

First- Ranked I know that people who play only ranked dislike the idea of limiting the amount of missions that can be completed in it, but I think it's the only way. Most of the missions Riot is make have "and win" as part of a lot of them, but for Ranked, I feel winning needs to not only be the primary objective, but rather the only objective. Thus, the only missions I would like to see that can be completed in Ranked are of these (or similar) forms.

• Play X games.
• Win X games.
• Win X games in a row.
• Play X games on Y map.
• Win X games on Y map.
• Win X games in a row on Y map.
• Play X Ranked games.
• Win X Ranked games.
• Win X Ranked games in a row.

Also, I really do love the idea of champion specific missions, but to prevent annoyances (most people have mastered, or even just played, a fraction of the full roster, and sometimes if they bought all the lowest price tier ones, a fraction of the ones they own.) how about they can only be assigned to champions that you have at mastery level 2 or above?

Next, I agree that all missions that require to achieve a certain output stat (think damage dealt, not AD) should have the secondary thing "and win" (even grades, because we all know at this point that they overvalue CS).

Finally, I would like that all missions that would require kills only require takedowns (kills/assists). This increases the number of plausible missions that can be dynamically generated, and just makes more sense IMO.