>>534011564
because even with "free lifesteal" he still sucks. because he's a scaling juggernoob not a "tank" even with how filthy mcNasty his R is.
because contrary to popular belief Nasus doesnt actually win you the game in a straight up 5v5 teamfight regardless of his stackronies and the OMG I 1-TAP EACH ENEMY is a pipedream. he's a terror in the splitpush yah but LoL is about forcing obj teamfight then barreling down one lane and forcing the issue and with Homeguards hard splitpushing for base towers/inhib is a suicide playstyle more often than not..

so the answer to your question is
"because he needs it".

Nay-Nay is a statball in a game where being a statball doesnt autowin you the game anymore.