Board Thread:League of Legends discussion/@comment-25866619-20141214020929/@comment-1330314-20141214042353

That's 40 HP per target and charge, on an ability that has four charges and can hit an unlimited amount of targets. 5.2 health heals you by 100 HP in about 20 hits, which can be done in under a minute and is a massive amount of sustain (contrast it to health regen, which starts out a lot slower). You are seriously undervaluing SV's sustain bonus here.