>>50474671There's only a couple of Pokémon that it won't be able to safely catch. For instance, anything with Teleport or Roar.
My Smeargle uses a similar move set:
Spore - 100% put a 'mon to Sleep
False Swipe - a must for catching Pokémon
Soak - for anything that is immune to or resists Spore and/or False Swipe
Taunt - to prevent Teleport/Roar/Sand Attack/Recover/etc.