mtg the first sliver commander deck EDH | Sliver Cascade Deck You may cast it without paying its mana cost Slivers - The First Sliver

If you win the flip, destroy all nonland permanents

Others used it to break up obscene board positions and just because it was that good

Other considered combo decks: Mill combo: like Terisian Mindbreaker/Cut Your Losses + Fraying Sanity

Winner will get an invitation to play in the Land, Go CEDH finals with a chance to win a Black Lotus

Flash is another vital component of Cast Outs playability, as being able to interact with the Saheeli combo at instant speed is absolutely vital in Standards current form

While a Changeling creature could potentially count as a Rigger, there were no natural Rigger creatures, nor any way to assemble Contraptions until 2017