For Challenge # 066. It's tough making an anti-Gruul card for Gruul. The obvious choice is to make a card about gathering resources... maybe putting lands into play or something. But a card like that could still be in a Ravnica set in the end. I wanted something that didn't feel appropriate.

This might not be that. I tried to drum up the 'noble savage' feel of Elves, since many Elves believe in a sense of society and community, which is what Gruul fights against. The Bloodbrothers are Elves that form a bond with another creature. If you kill that creature, they will come after you. But they aren't particularly offensive, and they only go after the offending party. There's a sense of fair play here, that would be scoffed at among the Gruul Clans.