Togekiss

Togekiss's ability Serene Grace and access to moves such as Air Slash, Thunder Wave, Roost, Charm, Nasty Plot, Encore, Substitute, and Fire Blast allow it to win a wide variety of matchups with low opportunity cost for changing sets. Togekiss can run its trademark Choice Scarf set to try to take faster Pokemon like Naganadel, Mega Charizard X and Y, and Zeraora through flinches or OHKO Pokemon like Greninja and Ferrothorn with a good range of coverage moves like Dazzling Gleam and Fire Blast, even if they don't help many matchups. Togekiss's real power, however, comes from its sets that utilize Z-status moves, such as Electrium Z + Thunder Wave and Fairium Z + Charm, as they can let Togekiss use its wide movepool and high bulk to minimize risk and secure most matchups. Togekiss is able to survive many attacks from powerful Pokemon with good investment, such as Choice Specs Greninja's Ice Beam, uninvested +2 Mega Gardevoir's Hyper Beam after Z-Thunder Wave, Jolly Choice Scarf Kartana's Smart Strike, Mega Charizard X's Flare Blitz, Genesect's Flash Cannon, and uninvested Tapu Lele's Shattered Psyche. Surviving these hits is important for Togekiss, as it allows it to bully them with Thunder Wave, Air Slash, Roost, Charm, or Substitute. However, its weakness to common Steel-, Rock-, and Electric-types such as Magnezone, Magearna, Terrakion, and Zeraora can hold it back significantly, as these are common picks against teams that use Togekiss, making it sometimes hard to send out.