None of these will be appearing in my primary teams against Darkrai later this week, but a couple of them might appear in the reinforcements that may show up should the first team faint out.
I’ll wait to see what the next Raid boss will be after Darkrai and how long it will remain before posting a new list update.
Most Shadow IV are terrible at best. At 82% with 15 attack this was only just worthy of the Power Up and second Move cost for added damage it can dish out.
Several places seem to report that low-IV shadow is a better attack than a high-IV non-shadow of comparable level. I won’t claim to grok the numbers underlying that observation; but one of these days I’ll try to look closer at it.
Regardless, I wouldn’t want to tangle with your maxed-out shadow machamp.
I’ve never payed much attention to the Legendary Pokémons on the game, since I don’t want to put in the effort in them that is required compared to other Pokémon.
The Regis however is an exception, since I like tanky Pokémons with high Defense/Stamina, and I think it is where they shine.
Also I’m a hoarder of Rare Candies, but in the end I felt like I had to put some to use since they took up unnecessary bag space.
and mega form 
