The transparent front and opaque back ensure its tournament-ready
Drawing four on cast regardless of anything else is great, even if its countered, and Annihilator 4 is going to be a problem to deal with
Four mana for a one-sided Howling Mine is already not the worst place to start, although that on its own would hardly be impressive
This card also has the Victory Pose ability, which states that during your turn, whenever this character banishes another character in a challenge, you gain two lore
Its a great way to revisit the seriess biggest moments while still getting a booster format built for actual play
Although higher numbers of Endurances are found in sideboards than in the maindeck, I wouldnt be surprised if decks include more Endurances maindeck already considering how much flexibility this card gives