Your search for "Overflowing Insight 66" revealed the following:
Overflowing Insight (XLN) from Ixalan, available at 401 Games Canada. Rarity: Mythic Rare Finish: Normal Artist: Lucas Graciano Card Text:Target player draws seven cards.
Overflowing Insight (Foil) (XLN) from Ixalan, available at 401 Games Canada. Rarity: Mythic Rare Finish: Foil Artist: Lucas Graciano Card Text:Target player draws seven cards.
Overflowing Insight (J25) from Foundations Jumpstart, available at 401 Games Canada. Rarity: Mythic Rare Finish: Normal Artist: Lucas Graciano Card Text:Target player draws seven cards.
Overflowing Insight - Prerelease Promo (Foil) (PXLN) from Ixalan, available at 401 Games Canada. Rarity: Mythic Rare Finish: Foil Artist: Lucas Graciano Card Text:Target player draws seven cards.