Rillaboom (Sword & Shield Promos SWSH006)

Rillaboom — 170 HP — [G]
Stage 2 — Evolves from Thwackey

Ability: Voltage Beat
Once during your turn, you may search your deck for up to 2 [G] Energy cards and attach them to 1 of your Pokémon. Then, shuffle your deck.

[G][G][G][C] Hammer In: 140

weakness: [R]×2
resistance:
retreat: 3

Illus. Kouki Saitou
Sword & Shield Promos — SWSH006 — Promo

By drumming, it taps into the power of its special tree stump. The roots of the stump follow its direction in battle.