Clock Wyvern

Level 4 WIND/Cyberse Effect Monster
1800 ATK / 1000 DEF

If this card is Normal or Special Summoned: You can halve this card's ATK, and if you do, Special Summon 1 "Clock Token" (Cyberse/WIND/Level 1/ATK 0/DEF 0). You can only use this effect of "Clock Wyvern" once per turn.

Rulings – Yugipedia

Printings:

Soul Fusion: SOFU-EN001 (Rare) - 2018-10-18
2019 Gold Sarcophagus Tin Mega Pack: MP19-EN152 (Common) - 2019-08-29
Egyptian God Deck: Slifer the Sky Dragon: EGS1-EN018 (Common) - 2021-06-17

Prices:

Cardmarket: 0.06 €
TCGplayer: $ 0.11