If you had to choose between either rat ninja to be your commander, I believe Nashi, Moon Sage's Scion would be the better choice
Untapping and goading the attacking creatures won't remove them from combat, even if they're attacking you
This doesn't mean you should buy the decks to profitthat's unlikely to work, since Wizards upped the supply of Commander decks after the True-Name Nemesis debaclebut it does mean that a lot of expensive, powerful, and fun casual cards are going to get cheaperway, way cheaper
Visual Card Collection Improvements The old interface
And the lands suite is one of the cheapest Ive seen, including such duds as Urborg VolcanoUrborg Volcano and Stensia BloodhallStensia Bloodhall
Of course, a fine play for seven mana tends to be back-breaking for four or five and luckily, thats how much I expect to regularly be playing this for