Trace

Description

Upon switching in, this Pokémon copies the opponent's ability. In multi-battles, Trace randomly selects which opponent's ability to copy. Trace cannot copy Illusion or Multitype. If the opponent has just been KOed, Trace will copy the ability of the next Pokemon revealed in the battle.

Competitive Use

There is only one fully evolved user of Trace, and that’s Gardevoir. However, Porygon2 is the best user of Trace by far, being able to check Pokemon such as Salamence and Gyarados with the combination of its bulk, Eviolite, and the reflected Intimidate. It can check many other Pokemon that have abilities that have pseudo-immunities such as Water Absorb, making Porygon2 a decent choice for an OU team, so it does have at least some competitive use. Gardevoir can also be seen, but is a lot rarer than Porygon2.

Found normally

Pokémon	Type	Tier	Abilities	HP	Atk	Def	SpA	SpD	Spe	BST
Gardevoir	Psychic	NU	Synchronize / Trace / Telepathy	68	65	65	125	115	80	518
Porygon	Normal	LC	Trace / Download / Analytic	65	60	70	85	75	40	395
Porygon2	Normal	UU	Trace / Download / Analytic	85	80	90	105	95	60	515
Ralts	Psychic	LC	Synchronize / Trace / Telepathy	28	25	25	45	35	40	198

Found in Dream World

Pokémon	Type	Tier	Abilities	HP	Atk	Def	SpA	SpD	Spe	BST