[Miller]

I think placement is the way to go, it adds onto deciding which runes you'll put in order while also trimming down on the amount of smoke a singular rune can generate without burning through swift rune cast or several rounds.

Though I will say, I can see an issue where RMs will intentionally refuse to move their runes for a bit to protect them, but I don't think that'd be a huge issue so long as the duration of said smoke is short enough.

Adding more bonuses to being in smoke instead of trimming down on the quantity/quality of sources will make it more obnoxious in the long run in my opinion. It'd only make it so large-scale sources of smoke would deny basic hitters from hitting each other unless more sources of smoke removal is added. (Less so in the case that they're inner circle only of course.)