Mineshaft updates

I think that they should add special rooms in like, I dunno, a underground ravine connected to an abandoned mineshaft. The special rooms would be really hard to find, and they would have tons of traps like spike traps (should totally add spikes to Minecraft), and would have special blocks/gems/weapons that would have special effects, like Instant Kill, or high value gems like rubies that when crafted into a tool or traded, gives you totally dominating powers like dissolving and reappearing (without damage) ability to instantly find the best places to mine, and other cool stuffs.