Gligar

Gligar has a niche as a usable physical wall in UU. With Eviolite boosting its already passable defenses, it is capable of taking even powerful neutral attacks such as Choice Scarf Victini's V-create. Furthermore, it's one of the only Pokemon that can switch safely into all of Choice Scarf Heracross's attacks. Switching into battle isn't hard for Gligar, as it's immune to both Spikes and Toxic Spikes and takes only neutral damage from Stealth Rock. It's even hard to cripple, as its Immunity ability protects it from poison. Gligar can support its team by setting up Stealth Rock and crippling opposing Pokemon with Toxic. However, the good news ends here. Gligar has pathetic offensive capabilities, and many Pokemon can use it as setup bait. It can lose momentum in a battle very easily, and give dangerous Pokemon such as Swords Dance Heracross and Nasty Plot Togekiss the chance they need to start a sweep. Gligar also has a crippling Ice-type weakness that allows Pokemon it should wall, such as Mienshao, to bypass its immense physical bulk with Hidden Power Ice. Its Water-type weakness and susceptibility to the burn status means Gligar is also plagued by Scald, a common Water-type move. Gligar has the potential to be a useful wall, but users must know how to alleviate its faults.