Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Sion tank hybrid
Most people see this build and say "?". Well it's certainly unusual. Sion can be a very effective tank while still putting out substantial damage. This build profits off of that. I buld health and armor, and choose offensive items that promote def. The perk of this build is death caress is used for both offense and defense. The damage and health are more due to warmogs passive. I change the last item depending on the circumstance. Alternate last item could be a Force of Nature, Blood thirster, Lichbane, it depends on the team you're facing. If you have trouble gaining funds in the begining could "turtle up", in other words build several hearts of gold and phase in items as you can afford them. Since this build is very mana thirsty, clarity is a must. I'm going to update this guide as I experiment with sion, so feedback is very appreciated.