A Vague concept for a new champion :o
To sum it up. A support that gains in strength as his/her teammates are near death/die.
Passive can be something like: He/she gains ap (or maybe makes his/her abilities scale better) as allies nearby lose hp, and gives a massive boost if an ally dies for X amount of seconds.
Let his/her kit remain support-ish initially. Maybe Q an AoE shield, W a passive aura of HP/MP regen, and the E some sort of soft disable.
Now here's where other's input would be nice for balance's sake and what not.
The ult could be either a mode toggle, from support to damage dealing (like Q now marks people like leona's passive, W drains hp from enemies nearby, E remains the same or becomes a nuke) Another Idea, I was thinking that the ult could be an activatable that is almost like a Gnar ult in which he/she loses it, in which he/she lets the anger get to him/her, which boosts damage and then causes her abilities to change as before, in which she can dish out damage. or lastly, The ult could be something completely different with some sort of teamfight presence, and we give him/her an activatable item (almost like viktors) that gains temporary charges (like yasuo's Q stacks) but with teammates dying.
The goal for this champion would be to actually make the enemy team cautious about ignoring the support and focusing other "prime" targets while he/she's alive. Now it doesn't need to make her an immediate threat, maybe after 2 teammates dying or 3 he/she then can activate something to greatly increase their power temporarily.
Or screw all of that and just give his/her Karma's old passive, just scaling off nearby teammates hp.
I want to see a barbaric healer, that doesn't just roll over and feels useless once others die and can take things into their own hands if needed, but hey that just may be me.
So obviously this is a very rough draft, so I'd like to see someone help refine/post ideas on this!