Jirachi

Jirachi graces the Ubers environment as a great supporting Pokemon. With its solid base 100/100/100 defenses and resistance to common Dragon-type moves, it can take on powerful Dragons with ease and use its large support movepool to simultaneously cripple opponents and aid its teammates. An immunity to Poison also helps in prolonging Jirachi's lifespan, as it is unaffected by Toxic Spikes and Toxic itself, both of which are very common in the Ubers tier. On top of all this, it can also deal reasonable damage with its base 100 attacking stats. However, Jirachi's average Attack stat prevents it from dealing great damage to bulky Physical Walls. It does, however, make a decent revenge killer with its wide arsenal of moves and Serene Grace.