I've always thought the hand signs would be difficult, but the best combination should be fire, water, sponge.
Sponge soaks up water, water puts out fire, fire burns sponge to a crisp.
Sponge is flat hand, like paper is currently. Fire is palm up, all fingers pointing up, wiggling, water is palm down, all fingers pointing down, wiggling. And you're right, that's an awesome variant.
Sorry what? Rocks were formed by the cooling of planetary bodies during their creation (such as the earth). Pretty sure there were no lizards around at that point in the early solar system.
I guess next up will the Torment Nexus. Using it means both players lose, but despite warnings not to use the Torment Nexus it becomes the most popular strategy and all games from that point on are losses
I was at a Texas Rangers game in the late 90s or early 00s and two kids were playing in the seats in front of me. The older kid played boogers wiggling all ten of his fingers at his opponent as a trump card. I still think about that. That little innovator is an adult now.