Your search for "Merfolk Trickster 56" revealed the following:
Merfolk Trickster (DOM) from Dominaria, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Jesper Ejsing Card Text:FlashWhen Merfolk Trickster enters the battlefield, tap target creature an opponent controls. It loses all abilities until end of turn.
Merfolk Trickster (Foil) (DOM) from Dominaria, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Jesper Ejsing Card Text:FlashWhen Merfolk Trickster enters the battlefield, tap target creature an opponent controls. It loses all abilities until end of turn.
Coral Trickster (Foil) (TSP) from Time Spiral, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: D. Alexander Gregory Card Text:Morph U (You may play this face down as a 2/2 creature for 3. Turn it face up any...
Coral Trickster (Foil) (TSR) from Time Spiral Remastered, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: D. Alexander Gregory Card Text:Morph U (You may cast this card face down as a 2/2 creature for 3. Turn it face...
Coral Trickster (TSR) from Time Spiral Remastered, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: D. Alexander Gregory Card Text:Morph U (You may cast this card face down as a 2/2 creature for 3. Turn it face up...
Coral Trickster - DDN Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: D. Alexander Gregory Card Text:Morph U (You may play this face down as a 2/2 creature for 3. Turn it face...
Coral Trickster (TSP) from Time Spiral, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: D. Alexander Gregory Card Text:Morph U (You may play this face down as a 2/2 creature for 3. Turn it face up any time...
Merfolk Thaumaturgist - PLC Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Steve Prescott Card Text:T: Switch target creature's power and toughness until end of turn.
Configuration: 3 cards per pack 12 packs per diaplay 18 displays per carton VGE-DZ-SS18 Triple Drive Booster D Finale ...
Merfolk Trickster - DOM Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Jesper Ejsing Card Text:FlashWhen Merfolk Trickster enters the battlefield, tap target creature an opponent controls. It loses all abilities until end...