If you control four or more creatures, it gets +2/+2 and gains indestructible until end of turn instead
Though exiling four cards a turn sounds like a lot of your deck gone, lets do the math: 100 cards, minus the commander, minus your opening seven-card hand, minus four draw steps by the time you cast this, leaves 88 cards in your library
And honestly, it's probably fine that they never unrestrict this
If your opponent has cards like Thoughtseize or Mind Rot in his or her deck, you can employ a strategy where you play out all of your cards right away and never have anything sitting in your hand
We offer micro cubes from 160-180 cards up to large 720 card cubes
Once something's been Plowed, it's gone for good -- until the next game