Your search for "Hedron Matrix 218" revealed the following:
Hedron Matrix (ROE) from Rise of the Eldrazi, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Jaime Jones Card Text:Equipped creature gets +X/+X, where X is its converted mana cost.Equip 4
Hedron Matrix (Foil) (ROE) from Rise of the Eldrazi, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Jaime Jones Card Text:Equipped creature gets +X/+X, where X is its converted mana cost.Equip 4
Hedron Matrix (CN2) from Conspiracy: Take the Crown, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Jaime Jones Card Text:Equipped creature gets +X/+X where X is its converted mana cost.Equip 4
Hedron Matrix (Foil) (CN2) from Conspiracy: Take the Crown, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Jaime Jones Card Text:Equipped creature gets +X/+X where X is its converted mana cost.Equip 4
Borg (020) // Clue (022) Token (Foil) (TTRK) from Star Trek, available at 401 Games Canada. Rarity: Token Finish: Foil Artist: Henry Peters & Flavio Greco Paglia Card Text:Clue: {2}, Sacrifice this token: Draw a card.
Officer (008) // New Planet Token (Foil) (TTRK) from Star Trek, available at 401 Games Canada. Rarity: Token Finish: Foil Artist: Nathaniel Himawan & David Frasheski Card Text:New Planet: {T}: Add one mana of any color.
Romulan // Worm Token (Foil) (TTRK) from Star Trek, available at 401 Games Canada. Rarity: Token Finish: Foil Artist: Ariel Orea & Leesha Hannigan Card Text:Worm: This token can't block.