Mechanics like morbid and void incentivize you to kill creatures constantly, which you can take advantage of with Chorale of the Void, Morbid Opportunist, or even setting up a full-power Tragic Slip
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I have no insider knowledge on this topic at all.) Tournament series like the StarCityGames.com Open Series depend on card sale revenue
Then put X +1/+1 counters on Siegfried, where X is twice the number of creature cards in your graveyard
7 Agate Instigator Double trouble