If you have low mana costs, lots of ramp, rocks and reducers, or don't need to cast your commander several times, you can lower the number of lands in your deck
In terms of Constructed play, I cant imagine this will make a splash in eternal formats like Modern or Legacy
And hey, worst case you might just win a game with an unblockable attacker
If they thought they had a good blocker, enjoy some simple math and capitalize on madness cards, Cranial Plating and Phyrexian Triniform
That's what makes it so slippery
Exploration for four mana is a bit spendy, but when you solve it which is really easy to do you get a green Future Sight effect that lets you play the most common green build-around cards off of the top of your library