For the most part, you’re going to want your Pokémon’s IVs to be maxed out at 31. However, there are some niche situations where you want your Pokémon to have IVs that are as low as they can go– down to 0.

What Pokémon do I want to catch at 0 Speed IVs?

In Pokémon Sword and Shield, you often only get one opportunity to catch certain Pokémon, such as legendaries like Stakataka and Glastrier. An important part of Trick Room teams is Pokémon that have 0 Speed IVs so that they move first under Trick Room. If you’re going through your game catching legendaries, and you’d like to play a Trick Room team in the future, we’ve listed out every single-capture Pokémon that you might want to catch at 0 Speed IVs. Know that having 0 Speed IVs isn’t a hard and fast rule-- slow Pokémon will likely work in Trick Room no matter what-- but if you’re a perfectionist, we got you. 

Know that lots of Legendary Pokémon can work in Trick Room, even if you don’t see them on this list. We’ve added a “priority” column so that you know how important having the 0 Speed IV is for this Pokémon, but again, it’s not a hard and fast rule.  

Important: at Level 50, 0 and 1 Speed IV are the same!

What Pokémon do I want to catch at 0 Attack IVs?

In general, having 0 Attack IVs on a Special Attacking Pokémon is a luxury, not a necessity-- it matters in very few scenarios. Those scenarios are 1) if your opponent has the move Foul Play, or 2) if your Pokémon might get confused and hit itself in confusion. We don’t really recommend this for legendary Pokémon, because you’ll need to perform (on average) 16 resets for each time you want to catch a Pokémon with 0 Attack IVs. 

The answer is, if you’re a perfectionist, “any Pokémon you won’t want using its Attack stat”. For Pokémon that you only have one opportunity to catch, a good rule is if the Special Attack stat is at or higher than the Attack stat, you might want 0 Attack IV on it. If you don’t mind as much, it probably won’t come up on the ladder or in a tournament. 

What Pokémon do I want to catch at 0 Special Attack IVs?

The only Pokémon that are necessary to catch at 0 Special Attack IVs are those that are going to be hitting their partner Pokémon with a Special Attacking move, such as Dragapult using Surf onto Gigantamax Coalossal to activate its Steam Engine. Generally, this will not be legendary Pokémon, so don’t worry about catching them with 0 Special Attack IV. Otherwise, it is not necessary to catch any Pokémon with a 0 Special Attack IV.