In controlling decks that can survive until turn 5, this is game over for every non-Spellskite creature in the Infect player's deck
They retain the same set symbol as BLB
While incredibly situational and requiring a lot of mana to be left on the board when you pass the turn, which is sure to raise suspicions with your opponent, if you can pull off this spell at an opportune time when your opponent has used up all their mana, it can be completely demoralizing, effectively making it so they may as well have skipped a turn
Ruric Thar, the Unbowed Ruric Thar, the Unbowed saw some play out of the sideboard while in Standard
I even run Dramatic Reversal (a steal at $1 for foils considering how much competitive EDH players love this combo) in case I need to go off without Paradox Engine
For example, The Gitrog Monster can draw you extra cards and Titania can give you a 5/3 any time you sacrifice one of these lands