Hydreigon ex 240/191 Loading
Any deck where I can slam Life from the Loam, The Gitrog Monster, and Uro, Titan of Natures Wrath, Im in
Its possible that the more natural way to build Slivers is to have Chord of Calling main and Return to the Ranks in the sideboard, but I think most opponents will actually be trying to kill the slivers, and if theyre not, I think well be in good shape, so I think Id rather start with the card that hedges against interaction
This means that you could grant your Reaper of the Wilds hexproof to avoid it being forced to fight another creature, but if it blocked a Sedge Scorpion the same turn it would still die
You can also kill your opponents with things like Gray Merchant of Asphodel
As long as theyre milling more than 40 permanents (which is rather likely), they should die on the spot