Hunger games is indeed just a Western rework of a Japanese concept that originated in Battle Royale, so accusing something of copying the copied is an ironic assertion to make. I never liked BR but I loathe when something rips an old concept and everyone flocks around it like it is new and special.
I don't see any link though. Bows and arrows had multipke used before that came out and I highly doubt the themes of it rekate at all to mlp and friendship, since it is all about killing.
Going back to the dolls, I hadn't seen Sugar Coat's image till now. I am now wondering whether I should have asked the guy who got Sunny Flare and Lemon Zest down for me whether ir not there were any others behind Sour Sweet. She was right at the top, though, and I didn't want her so I didn't ask...
It doesn't seem like she is out anywhere yet rhough.