Knowledge Exploitation [Morningtide] Instant Set: Promo Finish: Cold Foil

Set: Promo Finish: Cold Foil Type: Equipment Subtype: Arms Rarity: Promo Class: Ninja Attack Reaction - Destroy Breaking Scales: Target attack action card with combo gains +1 [Power]

Set: Sun & Moon: Hidden Fates - Shiny Vault Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

you may play that card without paying its mana cost

where X is the number of creatures attacking you

Knowledge Exploitation [Morningtide] Instant Set: Promo Finish: Cold FoilSet: Morningtide Type: Tribal Sorcery Rogue Rarity: Rare Cost: {5}{U}{U} Prowl {3}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.) Search target opponent's library for an instant or sorcery card. You may cast that card without paying its mana cost. Then that player shuffles.