Your search for "Hedron Matrix 209" revealed the following:
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
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
Dreamstone Hedron (C17) from Commander 2017, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Eric Deschamps Card Text:T: Add CCC to your mana pool.3, T, Sacrifice Dreamstone Hedron: Draw three cards.
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.
Klingon Warrior (004) // Treasure Token (Foil) (TTRK) from Star Trek, available at 401 Games Canada. Rarity: Token Finish: Foil Artist: Carlos C Diaz & David Frasheski Card Text:Klingon Warrior: HasteTreasure: {T}, Sacrifice this token: Add one mana of any...