User blog comment:Tecku/Tecku's Tribal Tactics Update/@comment-26988423-20180330010156/@comment-24951189-20180330025559

Ah yes, I forgot. Toadstool Takedown was a much cooler name IMO. As for the signature superpowers, you have to keep in mind this would be for a system where non-signature superpowers can be changed, so making heroes unique and balanced may rely on how potent signature superpowers are.

For example, supposed you want to make a Brainy/Sneaky Science deck with Teleportation Station, Super Stench, and In-Crytped. Both Super Brainz and Huge-Giganticus tie for native superpowers (they both need to substitute 2), so it comes down to best signature. If the two signatures are balanced, you'll pick the one based on what you want, bonus attacks or cheap cards. If they aren't balanced, then one hero may be neglected.