what you want to do is fill up cosmic belt and atlantian royal seal first, then either get the robe or diamond your pick, at your lesuire. anyway after filling up on those it depends on your game, if you want to be the tank that rushes in when someone caps one of your points and the rest of your teamates are scared of the turrent, then buy booster gold's power suit. if you want some more crowd control and want to be a threat in group fights instead of just being another tank that soaks up damage, then get mega rods its a nice attk speed bost for you and does splash damage so you do power damage when you get hurt to your enemy and when you are attacking them! Also if you want crowd control and want to be an ultimate tank, then get fragment of mogo, you can never go wrong with it, you get more attack armor and health and also at tier 3 you can activate its ability to do damage to enemies near you, also a bonus for your splash from being attacked and when you lock an oponent with the overwhelming rage attack that makes you 1v1 another champ. or if you want to slow down your oponents trying to flee even more, get lobo's chain so when you do your basic attack you also slow them down, and its a bonus too if you do keep atlantis royal seal to slow them down even more with your power skill attacks!