When Merchant's Urchin enters the battlefield, draw a card then discard a card.
0/2
Rhythm (Whenever you cast a spell, you may untap this creature.)
1/1
, , Discard a card: Target creature is unblockable this turn.
2/1
Flying
: Target land becomes the basic land type of your choice until end of turn.
: Target land becomes the basic land type of your choice until end of turn.
1/1
Flying
Sacrifice Spiketail Hawk: Counter target spell unless its controller pays .
Sacrifice Spiketail Hawk: Counter target spell unless its controller pays .
2/2
Rhythm (Whenever you cast a spell, you may untap this creature.)
Whenever Tremulous Aquamoeba becomes untapped, you may switch its power and toughness until end of turn.
Whenever Tremulous Aquamoeba becomes untapped, you may switch its power and toughness until end of turn.
1/4
Flash
Flying
When Aven Retriever enters the battlefield, you may return a creature you control to its owner's hand.
Flying
When Aven Retriever enters the battlefield, you may return a creature you control to its owner's hand.
3/2
2/5
Islandwalk
When Spiralseer enters the battlefield, shuffle your graveyard into your library, then draw a card.
When Spiralseer enters the battlefield, shuffle your graveyard into your library, then draw a card.
3/3
Look at target opponent's hand, then look at the top five cards of your library and put them back in any order.
Choose one — Draw a card, then discard a card; or switch target creature's power and toughness until end of turn; or target player puts the top five cards of his or her library on the bottom of their library.
Enchant creature
Enchanted creature has rhythm. (Whenever you cast a spell, you may untap this creature.)
Enchanted creature doesn't untap during its controller's untap step.
Enchanted creature has rhythm. (Whenever you cast a spell, you may untap this creature.)
Enchanted creature doesn't untap during its controller's untap step.
Untap up to three target attacking creatures and remove them from combat.
Counter target spell unless its controller pays for each spell they've cast this turn.
Melody — If you’ve cast another spell this turn, draw a card.
Melody — If you’ve cast another spell this turn, draw a card.
"Nice tune; let me see what I can do with it."
Draw two cards.
Melody — If you've cast another spell this turn, draw three cards instead.
Melody — If you've cast another spell this turn, draw three cards instead.
Choose one — Counter target noncreature spell; or return target creature an opponent controls to its owner's hand.
"I care not what you think you've done, but rather what you think you're planning."
— Humair Jeet, Themestrian Inspector
— Humair Jeet, Themestrian Inspector
Each player puts the top ten cards of his or her library into his or her graveyard.
Delve (You may exile any number of cards in your graveyard as you cast this spell. It costs less to cast for each card exiled this way.)
Return target permanent to its owner's hand.
Return target permanent to its owner's hand.