You could use Clash of the Eikons to have Ifrit defeat the Phoenix , mirroring the early scene where Clive unintentionally beats his brother Joshua while in their Eikon forms, which establishes Clive's motivations early in the game
Or maybe you have another, no less sneaky plan which I havent figured out yet :) The total power of tapped creatures is calculated before those are actually tapped, so Sword of the Paruns isnt of much use here
And now for something completely different: My favorite cube moment of all time involves an old classic, [casthaven]Upheaval[/casthaven]
I wouldnt be surprised if there ends up being a Lorcana area at Disney Springs or somewhere that draws diehards every weekend
However, against any deck playing direct removal, exile effects, sweepers, bounce, or just cards that don't really care about a 5/5, they are going to be woefully ineffective and usually trade down on mana and tempo
That somewhat frustrating detail, however, doesnt get in the way of the mechanics awesome strength