This can be accomplished with creatures like Cavern Harpy
As far as cards to pitch to Force are concerned, Mantis Riders, Phantasmal Images, Reflector Mages, Meddling Mages, and Unsettled Mariners (potentially) are on the roster
Lands A solid mana base is the unsung hero of any Commander deck, so you can cast your spells smoothly and enjoy the game without hiccups. In a Lord of the Rings Commander deck, lands that provide the right colors of mana for your spells are essential
That said, if Im putting the effort to play an expensive commander in the worst ramp color, Id much rather have something like Avacyn, Angel of Hope or Elesh Norn, Grand Cenobite
On the other hand, if your commander is [c]Kenrith, the Returned King[/c], you can put any cards you want in your deck because Kenriths color identity is all five colors