Tidehunter is a tank support.Tidehunter's ult is a great spell. Use tidehunter's 3rd skill to farm and never use your 1st skill on creeps.Your 2nd skill will make you more tank for your team. Late game tide only can tank and just use his ult in teamfights.Also tide can be offlane or babysit the carry. (also reminder:tide also can mid only if your team has no other heros to be mid. Because tide can gank and get his ult which is ravage early)