It's a nice card to put into go wide decks because it mitigates the damage caused by effects that destroy all creatures
They dont go away as steps, phases, and turns end, and effects that add mana of any type cant give you energy counters
Creatures are often wizards, merfolk, or spirits
Bellowing Aegisaur Cacophodon Frilled Deathspitter Imperial Ceratops Needletooth Raptor Overgrown Armasaur Polyraptor Ranging Raptors Raphael, Ninja Destroyer Raptor Hatchling Ravenous Daggertooth Red Hulk Ripjaw Raptor Siegehorn Ceratops Silverclad Ferocidons Snapping Sailback Sun-Crowned Hunters The Incredible Hulk Trapjaw Tyrant Urban Daggertooth
I am not surprised finding it at the top of our list, as it is the very best that Blue has to offer in terms of game winning threats
Teferi, Time Raveler became one of the most hated cards ever, and was banned for being overpowered and not fun to fight