Chilling Reign set of Sword & Shield series

Weezing
Stage 1
HP130
Evolves From: Koffing
Pokédex No.110
Mixin' Toxin
Your opponent's Active Pokémon is now Confused. Attach a Darkness Energy card from your discard pile to this Pokémon.
Smog Burst
This attack does 20 more damage for each Darkness Energy attached to all of your Pokémon.