Both the Frantic Search and Seething Song combos can be performed at instant speed, so you can attempt a win at the end of somebodys turn if your win condition is Comet Storm or Blue Sun's Zenith
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I think that's because, rather than a single mechanic, you're encouraged to build around four here: the four different types of bending
(This situation may occur in rare instances if the delayed triggered ability that would normally cause those permanents to phase in immediately is countered.) The Doctor's Tomb Plane Trenzalore If a creature would die, instead exile it and that creature's controller loses 2 life
When paired with Silas Renn, Seeker Adept you get consistent access to artifacts
How about an entire Hunny theme, as we now know to be coming in Set 13, Attack of the Vine