Seems the most straight across replacement would be Insurrection which for 1 mana less steals ALL creatures (not just one player's), gives them haste, and guarantees you have all the power and your opponents have no blockers
For over 60 years, this iconic Super Hero has taught the world that with great power comes great responsibility
Their end goal is making the opponent discard all their cards so they are less picky about individual discards
You can allow replays to get the player to get back to their starting rank, but I suggest that you teach the ranking system, as this one shows that you can lose to a challenger ten times, and then after you beat them once, you are all-of-a-sudden better than them
Just as importantly, Japanese booster boxes often tend to be more inexpensive, not only when exchange rates are favorable