Bearblocker

Level 3 DARK/Fiend Effect
1600 ATK / 0 DEF

During your opponent's turn, Set cards in your Spell & Trap Zones cannot be destroyed by card effects. If a Set card(s) in your Spell & Trap Zone is destroyed by an opponent's card effect: This card gains 800 ATK until the end of this turn.

Rulings – Yugipedia

Printings:

Soul Fusion: SOFU-EN029 (Common) - 2018-10-18
2019 Gold Sarcophagus Tin Mega Pack: MP19-EN175 (Common) - 2019-08-29
Tactical Masters: TAMA-EN050 (Rare) - 2022-08-25

Prices:

Cardmarket: 0.03 €
TCGplayer: $ 0.03