RA04-EN100 * Metaltronus * Quarter Century Secret Rare * Quarter Century Stampede SUDA-EN067 you can Tribute this card

you can Tribute this card to select that monster

add 1 Level 10 monster from your Deck to your hand with the same original Type

When this card is sent from the field to the GY: You can target 1 Level 5 or higher DARK Dragon monster in your GY

if this card is in your GY: You can make this card in the GY become DARK until the end of this turn

if your opponent controls a monster: You can Fusion Summon 1 non-Rock "Gem-Knight" monster from your Extra Deck

RA04-EN100 * Metaltronus * Quarter Century Secret Rare * Quarter Century Stampede SUDA-EN067 you can Tribute this cardTarget 1 face up non Token monster your opponent controls; Special Summon 1 monster from your hand, Deck, or Extra Deck that has 2 or more of the same Type, Attribute, and or ATK (but negate its effects), and if you do, negate that targeted monster's effects, also, after that, if these monsters have the same name, you can banish both, face down. Your opponent cannot activate the targeted monster's effects in response to this card's activation. You can