You should absolutely go for Necrozma-DM
NDM brings a ton of defensive utility and has good power. It has a great movepool, packing moves like Toxic, Thunder Wave, Stealth Rock, Knock Off, Sunsteel Strike, and Trick Room. NDM can act as either a great wall with its great bulk boosted by Prism Armor, or it can be a terrifying sweeper with its access to Trick Room, Swords Dance, and a potentially low Speed stat. Or, it can absolutely go for a Dragon Dance Weakness Policy sweep. There's just so much NDM can do very well, it should always be considered on a team.