Way harder than brute forcing it with a CT scanner, even a crappy one (a bit easier with a good modern machine)
There are a couple of green Planeswalkers that have card draw abilities on them, but the best one, in my opinion is Garruk, Primal Hunter
He finishes with this sentence: "Take that as an indication when you're in doubt, you're probably better off adding that extra land instead of that extra spell to your deck." I'm going to continue to advocate for 40 lands, because I feel being relevant in the game and having a deck which reliably casts its spells is superior to the alternative
This uncertainty can throw off your game plan, especially if you built your deck around a few critical creatures or spells
One of the most fun parts of Commander is the politicking that goes on around the table
Umbris, Fear Manifest Umbris, Fear Manifest is up next as one of the stronger exile commanders in Dimir