This card is sort of the Tooth and Nail of lands, while the other three abilities are used based on whats best for you
Champion of the Perished plays a similar role as Knight of the Ebon Legion, cards like Cryptbreaker create value, and we have a powerful planeswalker for removal, card advantage, or incremental value
Also, it doesnt hurt that this commander has an activated ability to mill opponents
The shaman is on the slow side with a toughness of three, leaving it susceptible to removal while reducing its chances of attacking multiple times
Silver-Fur Master is a Ninja lord giving a +1/+1 to all of our Ninjas
I also included Fertile Ground, Wild Growth, and Trace of Abundance to round out the ramp package