Is Baloth that much better than, say, uncommon Serra Angel? I'd be open to both of those going back to rare if it'd be that bad for Limited, but I was pushing both down with the dual motive of putting them in new players' hands and spreading the best cards across rarities.
I added Farseek thinking I might pick the Ravnica duals for my rare lands, but upon further consideration, as much as I love (and want more of) those lands, they posed two problems: (1) The limits they put on how good expansion fixers can be, and (2) The lack of distinction between enemy and friendly colors. The Onslaught fetchlands are powerful, take up half as much space, and keep the focus on allied colors.
Mmm...you make a good argument about Baloth. Conceded, provided there aren't enough beasts to consistently draft an archetype, and that every color gets one "outstanding, will always play this" bomb uncommon like this (doesn't have to be a creature). Preferably following the same "NCC" costing scheme, to prevent people from stealing your card for a splash.
I don't like the Rav duals OR the fetchlands. Shuffling takes time and bores new players, and WOW do new players hate to pay life for anything.
See the other thread where I posted like five or six different multiland cycles they could use instead, my favorite of which was "

: Untap target Forest or Plains." (omg combo w/ wild growth!)