Pithing Needle [Kaladesh Inventions] SM156 Set: Black & White: Plasma

Set: Black & White: Plasma Blast Type: Water Rarity: Holo Rare Retreat cost: Colorless

loyalties extend only as far as your purse can stretch

Set: HeartGold & SoulSilver: Black Star Promos Type: Colorless Rarity: Black Star Promo Retreat cost: Colorless

and it was his weakness that pushed him

Goblins Type: Creature — Elf Druid Rarity: Uncommon Cost: {2}{G} When Elvish Harbinger enters the battlefield

Pithing Needle [Kaladesh Inventions] SM156 Set: Black & White: PlasmaSet: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {1} As Pithing Needle enters the battlefield, choose a card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.