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
Token doublers, life drain triggers, and mana engines all multiply in value when there are more players involved
All the Partners in Commander 2016 would be two-color, with five allied color Partners and ten many enemy color Partners
Sisterhood of Karn Sisterhood of Karn is a 1/1 that grows quickly into a 2/2, 4/4, or 8/8 with minimal effort, provided that it lives
It's usually important for aggressive decks to have lands that can be used the turn they come into play, but with so few dual lands, A-Raiyuu is in danger of the dreaded mana screw