The original card had "you draw two cards and lose two life", "destroy target creature," and "cast a spell without paying its mana cost." The last ability was both too powerful and not really black (black could cast a spell out of a graveyard)
The creature also gains: "Whenever this creature becomes tapped it deals damage equal to its power to target creature
Kasla, the Broken Halo: Blue/Red/White Angel Ally with convoke, flying, vigilance, and haste
2 Gideon, Champion of Justice Planeswalkers are fine cards for multiplayer, but they tend to be a little weaker than in duels as a mechanic, and as such, they arent always on the top of my lists
Through these mechanics, it appears players will be casting a lot of free spells throughout the upcoming Commander decks
You could do fair things with Evil Twin