Division

Search your deck for up to 2 Koffing and put them onto your Bench. Shuffle your deck afterward.

Koffing

Tackle

Ascension

Search your deck for a card that evolves from this Pokémon and put it onto this Pokémon to evolve it. Then, shuffle your deck.

Smokescreen

If the Defending Pokémon tries to attack during your opponent's next turn, your opponent flips a coin. If tails, that attack does nothing.

Obscuring Gas

Flip a coin. If heads, shuffle Koga's Koffing and all cards attached to it into your deck (after doing damage).

Koga's Koffing

Foul Gas

Flip a coin. If heads, your opponent's Active Pokémon is now Poisoned. If tails, your opponent's Active Pokémon is now Confused.

Flip a coin. If heads, the Defending Pokémon is now Poisoned; if tails, it is now Confused.

Found in Shadowless Print Run Booster Packs

Double-edge

Double Spin

Flip 2 coins. This attack does 20 damage times the number of heads.

Poison Gas

Flip a coin. If heads, the Defending Pokémon is now Poisoned.

Suffocating Gas

Gnaw

Smog

Offensive Gas

Flip a coin. If heads, the Defending Pokémon is now Confused and Poisoned.

Gas Bomb

Koffing does 30 damage to itself, and don't apply Weakness and Resistance to this damage.

Confusion Gas

Foul Odor

Smogscreen

The Defending Pokémon is now Poisoned. If the Defending Pokémon tries to attack during your opponent's next turn, your opponent flips a coin. If tails, that attack does nothing.

Your opponent's Active Pokémon is now Poisoned.

Smelly Gas

Flip a coin. If heads, this attack does 10 damage to each Benched Pokémon (including your own). (Don't apply Weakness and Resistance for Benched Pokémon.)