I think that list would absolutely love Aether Vial. Imagine this: turn 4, you resolve Teferi, Aether Vial is up at 3 counters, and you have Silence and Flickerwisp in hand. You get to cast Silence on their turn, if something threatens your Teferi you tap vial bring out wisp and tuck Teferi. Turn 5, cast soulherder, tap vial to bring out witness in reaction to surgical extraction, saving your Silence and boom, locked. Is it a dream scenario? Sure. But with eladamri's call and the London mulligan it could be somewhat consistent tbh.
If one ephemerate is in the gy and the other in hand, it forms its own combo with witness/teferi/silence, incidentally-- ephemerate witness drawing silence from gy, then on the rebound drawing the other copy of ephemerate. That adds a card to the combo and renders it more vulnerable to gy hate though.
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I think that list would absolutely love Aether Vial. Imagine this: turn 4, you resolve Teferi, Aether Vial is up at 3 counters, and you have Silence and Flickerwisp in hand. You get to cast Silence on their turn, if something threatens your Teferi you tap vial bring out wisp and tuck Teferi. Turn 5, cast soulherder, tap vial to bring out witness in reaction to surgical extraction, saving your Silence and boom, locked. Is it a dream scenario? Sure. But with eladamri's call and the London mulligan it could be somewhat consistent tbh.
If one ephemerate is in the gy and the other in hand, it forms its own combo with witness/teferi/silence, incidentally-- ephemerate witness drawing silence from gy, then on the rebound drawing the other copy of ephemerate. That adds a card to the combo and renders it more vulnerable to gy hate though.