Shiftry

With its good attacking stats, Shiftry is an incredibly effective mixed attacker that can punch holes in teams with its various coverage moves, such as Leaf Storm, Nature Power, and Dark Pulse. Shiftry's access to priority in Sucker Punch means despite its average Speed, it can still hold its own against faster offensive teams. Sucker Punch also makes Shiftry a dangerous Swords Dance user, as nothing faster than Shiftry likes taking a boosted Sucker Punch. However, having a 4x weakness to U-turn and being frail in general means it can be checkmated rather easily by Pokemon such as Primeape and Braviary, while having difficulty switching into an attack or boosting with Swords Dance. Its typing is both a blessing and a curse; it's very useful for checking dangerous Pokemon such as Swords Dance Samurott and Exeggutor, but it also leaves Shiftry easily walled by common threats such as Mandibuzz and Bulk Up Braviary.