Damia, Sage of Stone Korozda Gorgon Pharika's Mender Pitiless Gorgon Reaper of the Wilds Sisters of Stone Death Tam, Mindful First-Year Tam, Observant Sequencer Vraska, the Silencer
That means that this board state is legal , too: But this one is not legal : Of course, this wont actually stop you from casting a copy of Squee, Goblin Nabob if you already control one
You can also target another player, whether or not they have that card in their library
It slows the combat, not resets it outright, and thus is unlikely to ruffle feathers too heavily
5 Mithril Coat Mithril Coat is the perfect way to foil your opponent's plans
In a deck that wants to play things from exile - of which there are many - these are just upgraded clue tokens, because they not only cost no mana, but also have so many synergies in Commander with cards like Laelia, the Blade Reforged, who gets stronger whenever you put cards into exile