Yellow-Bellied Oni

Level 4 DARK/Zombie Effect
1000 ATK / 1000 DEF

When you Xyz Summon a monster: You can Special Summon this card from your hand. Once per turn: You can detach 1 Xyz Material from a monster you control, then target 1 face-up Xyz Monster on the field; reduce its Rank by 1, and if you do, it loses 300 ATK.

Rulings – Yugipedia

Printings:

Shadow Specters: SHSP-EN033 (Common) - 2013-11-08

Prices:

Cardmarket: 0.05 €
TCGplayer: $ 0.17