Probably the most powerful gimmick deck built for the League has been the Orcish Artillery combination decks, which run about 10 copies of the Artillery (this was prior to the institution of a 6-card cap for uncommons), and a half dozen copies of Circle of Protection: Red
The sad truth is though, no deck is going to be happy with too many 5-drops, so there are going to be plenty of times where this gets cut because you already picked something better
The card supports a clean lifegain-and-counters plan on its own, and the party payoff gives you extra upside when your board lines up
Then, in the middle, is the Full Art Tyranitar V
Putting it on something with indestructible ensures all blocking creatures are tied up for a turn
Top Five Most Likely to be Pack One Pick One Dinosaurs Top Five Most Likely to Win the Pro Tour Dinosaurs Top Five Dinosaurs Who Dont Take Crap from Nobody on Ixalan Top Five Most Bad-Ass Pirates on Dinosaurs Gishath, Suns Avatar Wakening Suns Avatar Territorial Hammerskull Frenzied Raptor Ancient Brontodon