Echoing Decay [Mystery Booster] War of the Spark Prerelease Promos you may put a study

you may put a study counter on Pursuit of Knowledge instead

Set: Tempest Type: Sorcery Rarity: Common Cost: {1}{B} Buyback {3} (You may pay an additional {3} as you cast this spell

You may put an Aura card with mana value X or less from your hand onto the battlefield attached to it

"There are harsher ways to learn the meaning of the word 'no

Set: Gatecrash Type: Creature — Human Rogue Rarity: Uncommon Cost: {2}{B} {1}

Echoing Decay [Mystery Booster] War of the Spark Prerelease Promos you may put a studySet: Mystery Booster Type: Instant Rarity: Common Cost: {1}{B} Target creature and all other creatures with the same name as that creature get 2 2 until end of turn. A single fear unleashes a torrent of nightmares.