New darkin support and small remodel for Varus

How about a new darkin tank support champ.

His passive is that he gains partial stats from his teammates that die near him for 8 seconds. Q, some damage ability with some range. W, channel and siphon hp from all enemies in range. E, short range aoe cc to synergize with his w and help in teamfights, something like diana e but less pull and 1 sec stun and 1 sec root afterwards. R: Tops an ally's hp at a 2 for 1 ratio using his own health. So if adc is missing 1300 health, it would cost 2600 health to heal them. Make it a medium length cool down. Also passive on the ult, heals a bit for everything that dies near him. Small amount for minions, 3-5-8% max for champs based on ult rank.

Using the ult would be a decision so as to work with your passive. Ult when ally is near dead and you are out of the fight, unless you get some ult heals. Ult earlier so you can fight too and utilize passive. When whole team dies near you you can actually do something unlike some support tanks that become a useless brick. You would harvest ad, ap, attack speed, move speed, armor, mr and can fight for a few seconds.

I think it fits with the persistent fighting spirit of the darkin. The sustain and the death fuel. He would be a regular front liner big body tank with a little cc early in the fight and become a fighter the more it drags on and the more people die.

Also fix varus to fit the Darkin theme, make a lore update where Varus was weakened and the darkin fed enough and the bow awakened. Update colors and make it talk. And make varus's body become more infested with darkin-ism. And his voice slightly different.