Metrognome

Level 4 EARTH/Fairy Pendulum Effect
1800 ATK / 1600 DEF

[ Pendulum Effect ]
Once per turn: You can target 1 other card in a Pendulum Zone; this card's Pendulum Scale becomes equal to that card's, until the end of this turn.

[ Monster Effect ]

While you have 2 cards in your Pendulum Zones with the same Pendulum Scale, this card gains ATK and DEF equal to the Pendulum Scale x 100, and can attack your opponent directly. If this card inflicts battle damage to your opponent by a direct attack: Destroy all cards in the Pendulum Zones.

Rulings – Yugipedia

Printings:

Raging Tempest: RATE-EN034 (Short Print) - 2017-02-09
2017 Mega-Tin Mega Pack: MP17-EN198 (Common) - 2017-08-24

Prices:

Cardmarket: 0.04 €
TCGplayer: $ 0.14