Your search for "Nanoform Sentinel 71" revealed the following:
Nanoform Sentinel (EOE) from Edge of Eternities, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Tianxing Xu Card Text:Whenever this creature becomes tapped, untap another target permanent. This ability triggers only once each turn.
Nanoform Sentinel (Foil) (EOE) from Edge of Eternities, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Tianxing Xu Card Text:Whenever this creature becomes tapped, untap another target permanent. This ability triggers only once each turn.