They are, after all, a three-mana Planeswalker, which often seems to be the sweet spot for power
Word Of Command Word of Command is infamously one of the most poorly worded cards in the game, but taking control of an opposing action can be a scary effect for just two black mana
Unfortunately you lose all of your progress if Hallar dies or otherwise leaves play, and that fact that you want to kick all of your spells plays merry havoc with the mana curve of any deck that has Hallar at the helm
Magic: The Gathering has been leaning a lot further into video game collaborations, with popular sets like Fallout, and less popular sets like Assassin's Creed, having been released as part of the Universes Beyond series over the past couple of years
Its a mana-intensive affair, but theres no denying the impact and power of this fusion