Armed Dragon LV7

Level 7 WIND/Dragon Effect
2800 ATK / 1000 DEF

Cannot be Normal Summoned/Set. Must be Special Summoned by "Armed Dragon LV5". You can send 1 monster from your hand to the GY; destroy all monsters your opponent controls with ATK less than or equal to that sent monster's ATK.

Rulings – Yugipedia

Printings:

Soul of the Duelist: SOD-EN015 (Ultimate Rare) - 2004-10-01
Soul of the Duelist: SOD-EN015 (Ultra Rare) - 2004-10-01
Structure Deck: Deluxe Edition: SD1-ENDE1 (Secret Rare) - 2005-01-01
Duelist Pack: Chazz Princeton: DP2-EN012 (Super Rare) - 2006-02-08
Dark Revelation Volume 3: DR3-EN015 (Ultra Rare) - 2006-11-25
Legendary Collection 3: Yugi's World Mega Pack: LCYW-EN205 (Common) - 2012-09-29
Legendary Duelists: Ancient Millennium: LED2-EN027 (Common) - 2018-02-22
OTS Tournament Pack 15: OP15-EN014 (Common) - 2021-02-17
OTS Tournament Pack 15 (POR): OP15-PT014 (Common) - 2021-02-18
Speed Duel GX: Duel Academy Box: SGX1-ENC08 (Common) - 2022-03-17
Speed Duel GX: Duel Academy Box: SGX1-ENC08 (Secret Rare) - 2022-03-17

Prices:

Cardmarket: 0.18 €
TCGplayer: $ 0.25