Un- booster sets have most of their Limited play happen in one season, when the set comes out, which would have made this card mostly act in one way
Taking visual cues from games like Hearthstone, Arena is my preferred way to play the Standard and Pioneer formats - Modern, Legacy, and other older non-rotating formats aren't present on Arena
Unlike Mondrak, Glory Dominus , this creature is NOT a Legendary, meaning you can have multiple on the battlefield at once
Heres a quick preview of what you can do with the EssentiarumVG font (though this depicts an earlier version) : This font contains pretty much every video game-related symbol I could think of
That means it can attack or block as soon as it hits the battlefield, but by your next upkeep it'll be turned off again