Originally Posted by Marrr
Nasus withers whoever wants to attack the carry, then kills them. By your definition, Lee Sin would fit the role of tank perfectly.
Okay, you wither one person, congratulations, now what stops the other 4 champions from getting to your carry?
Alistar has an aoe knock up, and a headbutt, he has a heal to support his team in lane and team fights, and his ult makes sure he won't die so easily to keep doing his job.
Leona has 2 stuns and an aoe stun/slow, and her passive lets her team hit harder.
Amumu has a stun, an aoe stun, and 2 aoe damaging skills
Nautilus has a stun/grab, a stun, aoe slow, and an aoe knock up
Blitzcrank has a stun/grab, knock up, and an aoe silence
Tanks can play the roll of support to feed their carry, can Nasus play the role of support? No, tanks don't need creep score, they're 0cs champions. If Nasus has 0cs could he be of use? He'd tickle with his Q, your arguement is invalid.