Token doublers, life drain triggers, and mana engines all multiply in value when there are more players involved
The rare is a 5-drop 4/2 that will force a targeted foe to sacrifice a dork each time you become the monarch, and since it makes you the monarch first, that will be at least once
With the tools to prune your own card, and a huge variety of effects that benefit from cards leaving your yard, I think Sin has the capability to really shine in lower-powered environments, given the permanence of its effect and high mana value
All the Partners in Commander 2016 would be two-color, with five allied color Partners and ten many enemy color Partners
When he comes into play, pay two generic and then X, with X becoming the number feather counters that Kangee comes into play