Your search for "mobile worker st10-010" revealed the following:
Mobile Worker (Tekkadan) - ST10-010 - Common from ST-10 Starter Deck: Generation Pulse, available at 401 Games Canada. Rarity: Common Finish: Normal Card Text:[Blocker] (Rest this Unit to change the attack target to it.)
Mobile Worker (Tekkadan) (C+) (Alternate Art) - ST10-010 - Common+
ST-10 Starter Deck: Generation Pulse
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Mobile Worker (Tekkadan) (C+) (Alternate Art) - ST10-010 - Common+ from ST-10 Starter Deck: Generation Pulse, available at 401 Games Canada. Rarity: Common+ Finish: Foil Card Text:[Blocker] (Rest this Unit to change the attack target to it.)