Your search for "Fanatical Strength 310" revealed the following:
Fanatical Strength - Magnified Showcase (Foil) (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Joshua Cairos Card Text:Target creature gets +3/+3 and gains trample until end of turn.
Fanatical Strength - Magnified Showcase (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Joshua Cairos Card Text:Target creature gets +3/+3 and gains trample until end of turn.