Shield Dust

Description

The wielder is unaffected by secondary effects of moves. This includes 100% occurrences, such as from DynamicPunch and Inferno. Shield Dust prevents the flinching effects of Stench, King's Rock, and Razor Fang, as well as the potential secondary effects from using Fling with certain items. It does not prevent effects from moves where the move is dedicated to that effect, such as Thunder Wave. It does not prevent secondary effects from moves used by this Pokemon, such as Close Combat and AncientPower.

Competitive Use

This is actually a really good ability, but you cannot expect to see it very much when the five Pokemon that have it are Caterpie, Weedle, Venomoth, Wurmple, and Dustox. Venomoth is somewhat usable nowadays but would always much prefer Tinted Lens or Wonder Skin to Shield Dust. The other four are just awful, and this is a shame, because this ability could be really good on the right Pokemon.

Found normally

Pokémon	Type	Tier	Abilities	HP	Atk	Def	SpA	SpD	Spe	BST
Caterpie	Bug	LC	Shield Dust / Run Away	45	30	35	20	20	45	195
Dustox	Bug / Poison	NU	Shield Dust / Compoundeyes	60	50	70	50	90	65	385
Venomoth	Bug / Poison	BL2	Shield Dust / Tinted Lens / Wonder Skin	70	65	60	90	75	90	450
Weedle	Bug / Poison	LC	Shield Dust / Run Away	40	35	30	20	20	50	195
Wurmple	Bug	LC	Shield Dust / Run Away	45	45	35	20	30	20	195

Found in Dream World

Pokémon	Type	Tier	Abilities	HP	Atk	Def	SpA	SpD	Spe	BST