Can I add Darkin Kayns 'double kill' 'pvp only' to list of missions that don't seem wholey fun/fair to do? In theory it seems alright but in reality getting a double kill can take longer, especially if you're bad like me or just flat out main supports (especially with the mentality 'who cares who gets it as long as the kill doesn't escape').
Mostly why it's unfun is because I focus more on getting the double kill and over extending/reaching for it only to have someone else take it and actually start getting IRRITATED by it. That's when I had to look at myself because if it wasn't for the mission I wouldn't have felt irritated anyway - it's literally only for an icon, albeit one for a specific champion but the requirements for it made the game less fun and more vexing.
Now THIS 300 cs interaction I can see being unfun. Let's have the ADC farm botside all game, ignoring teamfights in favor of CS - this would be fine if this were a bot match but I'm not sure if the mission lies within the realm of "matchmade" or "pvp only". This encourages players not to work with each other, instead encouraging single play like what Riot was trying to avoid with these and makes it tedious and unfair for most players, especially those outside a role that can effectively CS like this (support/jungle mainly).
Honestly in comparison I'd rather just farm up the IP for the icons instead of doing the missions, if I was going to get the icons at all. Less tedious, I can play my games how I want to play them and there's generally no real frustration outside of game tilt. If missions keep going like this... it's going to be rough.