Dhelmise is a harshly overlooked Pokémon in both Singles and Doubles VGC. Dhelmise has a Base Stat lineup of:
70HP/131ATK/100DEF/86SP.ATK/90SP.DEF/40SPE
giving it a Base Stat Total of 517. Doesn't look like much but looks ok at first glance, but I've learned otherwise using my special set (I hope ). Steelworker gives it basically another STAB (Same-Type Advantage Bonus) which multiplies the power of Steel-Type Moves by 1.5, making Anchor Shot 120 power. To make it known how it KOs the Tapus, here's a set:
Tapu Anchor (Dhelmise) @ Expert Belt
Ability: Steelworker
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Anchor Shot
- Protect
- Earthquake
- Power Whip
I only have Expert Belt because I already had a Life Orb Pokémon (Togedemaru) on my VGC team, where Items are limited. Anchor Shot OHKOS Tapu Bulu and Tapu Lele even if they have maxed out EVs for surviving Anchor Shot and a like 98% chance to die of they have a +DEF nature too, which nobody does. Earthquake OHKOS Tapu Koko for obvious reasons even with EVs though you could Air Balloon, and Brave Bird I'm pretty sure doesn't OHKO Dhelmise itself though I think you'd have to adjust the set to have it live BB. Power Whip OHKOs Tapu Fini, even though it isn't used much. It's a very versatile Pokémon and can hit many other things that there's too much to name (Primarina, Magnezone, Marowak-Alola, (On Crit) etc). Marowak-Alola is the biggest threat but you can put things on your team to deal with that. I hope I have you convinced to use Dhelmise to defeat those pesky Tapus.