Knowledge Exploitation [Morningtide] Standard size Spend this mana only to

Spend this mana only to cast artifact or creature spells

"They can't even comprehend nature

Set: Commander Anthology Type: Sorcery Rarity: Rare Cost: {4}{G}{G} Draw a card for each creature you control

The fear of dragons is as old and as powerful as the fear of death itself

Set: Invasion Type: Instant Rarity: Rare Cost: {5}{B} Choose a creature type

Knowledge Exploitation [Morningtide] Standard size Spend this mana only toSet: 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.