Cyber Dragon Core

Level 2 LIGHT/Machine Effect Monster
400 ATK / 1500 DEF

When this card is Normal Summoned: Add 1 "Cyber" Spell/Trap from your Deck to your hand. If only your opponent controls a monster: You can banish this card from your GY; Special Summon 1 "Cyber Dragon" monster from your Deck. You can only use 1 "Cyber Dragon Core" effect per turn, and only once that turn. This card's name becomes "Cyber Dragon" while on the field or in the GY.

Rulings – Yugipedia

Printings:

Cyber Dragon Revolution Structure Deck: SDCR-EN001 (Super Rare) - 2014-02-06
OTS Tournament Pack 2: OP02-EN018 (Common) - 2016-07-15
Legendary Dragon Decks: LEDD-ENB04 (Common) - 2017-10-05
Maximum Gold: MAGO-EN123 (Rare) - 2020-11-12
Structure Deck: Cyber Strike: SDCS-EN008 (Common) - 2021-10-14
Quarter Century Stampede: RA04-EN013 (Collector's Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN013 (Platinum Secret Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN013 (Quarter Century Secret Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN013 (Secret Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN013 (Super Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN013 (Ultimate Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN013 (Ultra Rare) - 2025-04-10

Prices:

Cardmarket: 0.05 €
TCGplayer: $ 0.10