Hi there, I have been maining yorick since season 5 and consider myself an above average yorick player with over 3.3 million mastery on the champ. This build is not good for every matchup but excels against matchups where the enemy is squishy and/or super mobile. Iceborn helps you to stick to them as well as to prevent from dying too early before your maiden and ghouls and put out alot of damage. This build also works well if you find yourself behind and need to frontline for your team in fights when splitting isn't a viable option.