It also creates the potential for fun mind games instead of just forcing the opponent to awkwardly play around whatever spell you revealed
While Caltrops does deal one damage to creatures when you attack as well, this isn't much of a downside when you hardly need to attack at all
Looking at Emet-Selch, Unsundered, its easy to see how it could be a busted MTG card
However, I am beginning to think it may not be so
Since youll pay life rather than mana to cast opponents spells, youll need lifegain effects, something that black cards have plenty of: Gray Merchant of Asphodel or Sheoldred, the Apocalypse balance out the life costs for casting opponents cards you exile after combat damage
Definitely feels like a setup for a finishing combat phase, or multiple if youre going the extra combats route