Your search for "Inspiration DEM2-EN020" revealed the following:
Inspiration - DEM2-EN020 - Common from Yu-Gi-Oh! Promos: Demo Deck 2015, available at 401 Games Canada. Rarity: Common Card Text:Target 1 face-up monster you control; it gains 700 ATK until the end of this turn.
Inspiration - DEM3-EN020 - Common from Demo Deck 2016, available at 401 Games Canada. Rarity: Common Card Text:Target 1 face-up monster you control; it gains 700 ATK until the end of this turn.