Knowledge Exploitation [Morningtide] 232 Set: Portal Three Kingdoms Type:

Set: Portal Three Kingdoms Type: Sorcery Rarity: Uncommon Cost: {1}{R} Rockslide Ambush deals damage to target creature equal to the number of Mountains you control

but its original ATK becomes 0

Set: Eighth Edition Type: Land Rarity: Rare Whenever City of Brass becomes tapped

Special Summon 3 Phantasmal Martyr Tokens (Fiend-Type/DARK/Level 1/ATK 0/DEF 0) in Attack Position on your side of the field

Set: Diamond & Pearl: Black Star Promos Type: Grass Rarity: Black Star Promo Retreat cost: Colorless

Knowledge Exploitation [Morningtide] 232 Set: Portal Three Kingdoms Type:Set: 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.