Armarouge

The incredible power of Armor Cannon makes Armarouge a terrifying foe in the RU tier, often threatening a KO whenever it enters the field. With its excellent STAB combination that hits most of the metagame, Weak Armor that constantly deters weak physical moves like U-turn and Rapid Spin, and the physical bulk to make use of it, Armarouge can serve as both a wallbreaker and sweeper simultaneously. Armarouge is unique among the Psychic-types in the tier due to its ability to threaten Steel-types like Jirachi, Magnezone, and Registeel with Armor Cannon. Armarouge's drawbacks, however, are evident; its Speed is lower than much of the tier, allowing many Pokemon like Basculegion-F and Gengar to outspeed it prior to Weak Armor's activation, and its ability to take special attacks is poor. Its weakness to Stealth Rock and the combined Defense drops from both Weak Armor and Armor Cannon can cause damage to add up quickly, resulting in Armarouge being unable to survive subsequent attacks from revenge killers and bulky Pokemon.