Tyranitar

Tyranitar is a good specially defensive wall in Ubers due to its high bulk aided by Sand Stream and a typing that enables it to combat top-tier threats such as Calyrex-S, specially offensive Yveltal, and Eternatus. Notably, Tyranitar's summoned sand enables Excadrill to function as a setup sweeper and revenge killer while granting teams a better matchup versus rain-boosted Dracovish. Its typing is advantageous against Yveltal and Ho-Oh, allowing Tyranitar to maintain Stealth Rock throughout the match, though it should be wary of Knock Off or U-turn from Yveltal. While Rest assures Tyranitar's longevity and the ability to act as a status absorber, it becomes easy to manipulate. Tyranitar is weak to a large number of common threats such as Necrozma-DM, Kyogre, Xerneas, Groudon, and Zygarde, so it is easily forced out and thus finds it relatively difficult to burn through sleep turns. Despite these flaws, Tyranitar remains a good pick, as it compresses a Stealth Rock user and a Calyrex-S counter into one teamslot.