Choice Band Galarian Darmanitan is a great choice here because of its amazing offensive power and its coverage. We can use Icicle Crash or Ice Punch are used as Galarian Darmanitan’s STAB-boosted attacks, with Ice Punch used for its 100 Accuracy and Icicle Crash used because of its additional Base Power, notable against Rhyperior and physically bulky Tapu Lele. Icicle Crash has a 30% flinch chance as well, providing a chance for Galarian Darmanitan to beat some Pokemon 2HKOed at best by any move Darmanitan-Galar can throw at them, such as physically bulky Necrozma.
Giga Impact is a must, due to its insane damage on many bulkier targets such as Tapu Fini, Sylveon and Primarina.
Flare Blitz is also a must, as it does massive damage to Steel-types, notably OHKOing Registeel.
The last move on Choice Band Galarian Darmanitan should be one of Superpower or Earthquake.
Superpower can be used to turn matchups such against bulky Kyurem and Chansey in Galarian Darmanitan’s favor, and Earthquake allows Galarian Darmanitan to beat bulky Volcanion more reliably.
