Your search for "Wriggling Grub 12" revealed the following:
Fletchling - 086/103 - Common - Reverse Holo from Mega Evolution: Delta Reign, available at 401 Games Canada. Rarity: Common Finish: Reverse Holo Artist: takashi shiraishi Card Text:[C] Surprise Attack (30)Flip a coin. If tails, this attack does nothing.
Wriggling Grub (J25) from Foundations Jumpstart, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Caio Monteiro Card Text:When Wriggling Grub dies, create two 1/1 black and green Worm creature tokens.