Your search for "Griffin Sentinel 12" revealed the following:
Griffin Sentinel (Foil) (M12) from Magic 2012, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Warren Mahy Card Text:FlyingVigilance (Attacking doesn't cause this creature to tap.)
Griffin Sentinel (M12) from Magic 2012, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Warren Mahy Card Text:FlyingVigilance (Attacking doesn't cause this creature to tap.)
Griffin Sentinel (M10) from Magic 2010, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Warren Mahy Card Text:FlyingVigilance (Attacking doesn't cause this creature to tap.)
Griffin Sentinel (Foil) (M10) from Magic 2010, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Warren Mahy Card Text:FlyingVigilance (Attacking doesn't cause this creature to tap.)
Griffin Sentinel (Foil) (M20) from Core Set 2020, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Warren Mahy Card Text:FlyingVigilance (Attacking doesn't cause this creature to tap.)
Griffin Sentinel (M20) from Core Set 2020, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Warren Mahy Card Text:FlyingVigilance (Attacking doesn't cause this creature to tap.)
Griffin Sentinel (Foil) (M14) from Magic 2014, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Warren Mahy Card Text:FlyingVigilance (Attacking doesn't cause this creature to tap.)
Griffin Sentinel (M14) from Magic 2014, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Warren Mahy Card Text:FlyingVigilance (Attacking doesn't cause this creature to tap.)