>>55178035>ContraryStellar Tera Blast is boosted to 100 power but debuffs your attack stats by -1. Contrary turns this into a +1 buff.
In regular battles, this is a pretty good way to check the opponent's Tera mon. It's never the best option in any given matchup and it costs you your own Tera slot, but it's a good general option when you don't know what you're up against.
In raids, this sounds even better because the opponent is always Tera'd (so Stellar is always super-effective), but you have major drawbacks of having to charge your Tera and more importantly the fact that Stellar is NEVER STAB, even with Tera Blast/Starstorm, which means you can NEVER deal full damage to Raid shields. Shields take only 35% damage from moves that don't match your Tera type while you're Tera'd, compared to 75% when using moves that match your Tera type. Even with Stellar's 1.2x damage multiplier on non-STAB moves, you'll only ever be about half as effective at breaking shields.
Enamorus is the best Contrary mon. Superpower is her best move to take advantage of Contrary, so you'd want to build her as a physical attacker, use Superpower to set up +ATK/+DEF buffs and build Tera charge, then spam Tera Blasts. You can also do this with Lurantis or Malamar.
Serperior is the special attacker option with Contrary Leaf Storm. Three attacks gets you to +6 and charges your Tera. Would it be better to just run Tera Grass into anything that doesn't resist it? Probably.
Outside of Contrary, you're looking at some super-generalist mons.
Arceus can deal with almost any raid with Acid Spray + Judgement by switching its Plate and Tera Type. Stellar saves you the time and expense of changing the Tera, but you'll only be half as effective at breaking shields. Unless you're fighting a 6*/7* special wall, that probably doesn't really matter.
Terapagos is welfare Arceus. Very bulky Normal-type, Tera Starstorm nukes, lots of coverage options but really doesn't have good raid moves besides Calm Mind.
