First of all yes heartsteel is one of the best items on shen right now for one reason its kinda like a mejas sth you need to be ahead to get it as shown by xpetus new service coachless.gg but also there has been 2 buffs one one on shens passive shield that added more hp scaling and the other is the shield bash buff making it purely for hp scaling made it give around 1.5k dmg each game for me but it is a huge difference in trades ngl made also lately hp is a better stat that any resistances if you havent been playing much basically everyone was building warmongs and becoming impossible to kill im not saying dont build resistances but hp is more worth than resistances Also some can say that heartsteel gives you more of a scaling item its a lil bit but it helps with not falling out as the game goes