If a player does decide to respond, their spell or ability goes on the stack on top of what was already waiting there
Personal opinion: Looting isnt worth spending extra mana on in Commander, so the Gateways not really getting there on its own, and the threat of this flipping is enough to attract the attention of your opponents
You can win games by exiling Triskelion and Lord of Extinction, or you can just mess with people by exiling their best creatures
It's not hard to make this a board sweeper that you benefit from more than your opponent, and when you flash it back that's especially true
Lathril, Blade of the Elves Is a Powerful Commander Elf Deck Elf decks are powerful in various Magic: The Gathering formats, including Commander, since the Elf creature type has so much support from "lord" creatures and other effects
If not, that Aura, Equipment, or Fortification Fortification: An artifact subtype