After many many hours of playing, I've noticed that most factions (if not all), have a signature and distingable mass slayer, such as Saruman with his aoe melee attack, his wizard blast and fire ball, Gimli and his iconic jump, Boromir being a tank and also having Aoe melee attack plus Gandalf and his abilities for Gondor, Witchking and his masse and so on....
The think is that when playing with Imladris, I could not see anybody with such a signature role as in the other factions. I thought that just maaaybe it could be Elrond because he has Vilya, but it with the little damage it does, it works more like a kind of stunner than mass slaying, besides of the fact that it's a level 10 so it takes days to recharge; so would be like saying that Gloin is Erebor's mass slayer because of his level 10 earth-smash that pulls back enemies and does a bit of damage.
On the other hand I thought that Glorfindel could be it? Because of when you release his starlight ability? Either way it's all too insignificant for what (taking the rest of the mass slayers as example) a proper mass slayer is.
Which is why I propose making one of the Imladris' heroes a massive slayer since they have none (by either abilities or aoe+splash attack) or if they have one it's extremely hard to tell who it is, either way it's not good. My main bet is on making Glorfindel a tank/mass slayer like boromir (giving him aoe+splash attack)+ giving him mass slayer abilities like making the ''release starligt'' ability much more powerful and with an area of effect (and damage) similar to Gimli's jump. Which I think it's proper for this Elven Lord given the legend he is.I remember DieWalküre agreeing with the idea of the main premise but he/she thought it was better to put Elrond on that role. I do not agree because I think he is more of a support hero, despite of his level 10 that really helps more to stun or run than to mass-slay as I said, and even if the damage on it was to be improved, the ability is still a level 10 which means it takes centuries to recharge.
Feel free to debate more on this!