Knowledge Exploitation [Morningtide] Starter 1999 Set: Commander 2017 Type: Instant

Set: Commander 2017 Type: Instant Rarity: Rare Cost: {R}{W}{B} Crackling Doom deals 2 damage to each opponent

you may sacrifice an artifact

it will be reborn

Set: Eldritch Moon Type: Legendary Creature — Spider Rarity: Mythic Cost: {4}{G} Reach

Knowledge Exploitation [Morningtide] Starter 1999 Set: Commander 2017 Type: InstantSet: 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 their library.