Your search for "Defiant Strike 7" revealed the following:
Defiant Strike (J25) from Foundations Jumpstart, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Gabor Szikszai Card Text:Target creature gets +1/+0 until end of turn.Draw a card.
Defiant Strike (KTK) from Khans of Tarkir, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Anastasia Ovchinnikova Card Text:Target creature gets +1/+0 until end of turn.Draw a card.
Defiant Strike (Foil) (M21) from Core Set 2021, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Gabor Szikszai Card Text:Target creature gets +1/+0 until end of turn.Draw a card.
Defiant Strike - WAR Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Gabor Szikszai Card Text:Target creature gets +1/+0 until end of turn.Draw a card.
Product Code: COR281654-1263 Armies: Combined Army, Onyx Contact Force. Nexus-7 were born as a homage to the so-called Etteoklia Seven. They are an elite group of operatives capable of facing any situation and prevailing in any circumstance, always looking up...
Defiant Strike - Japanese (Foil) (STA) from Strixhaven Mystical Archive, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Amayagido Card Text:Target creature gets +1/+0 until end of turn.Draw a card.