Commander Covington

Level 4 EARTH/Machine Effect Monster
1000 ATK / 600 DEF

You can send 1 face-up "Machina Soldier", "Machina Sniper", and "Machina Defender" you control to the GY; Special Summon 1 "Machina Force" from your hand or Deck.

Rulings – Yugipedia

Printings:

Machina Mayhem Structure Deck: SDMM-EN005 (Common) - 2010-02-19
Legendary Collection 3: Yugi's World Mega Pack: LCYW-EN167 (Secret Rare) - 2012-09-29
Structure Deck: Mechanized Madness: SR10-EN013 (Common) - 2020-04-16

Prices:

Cardmarket: 0.06 €
TCGplayer: $ 0.09