Desert Pyramids + Spike Blocks

Pyramids have been very lame since they were introduced: 4 chests, tnt and that's it basically. They could add almost like a mini-dungeon underneath every pyramid, like the new bastion or the jungle mansion. There could be rooms with traps, mob spawners, treasure and at the end, even a mini-boss (like the elder guardian) guarding some treasure. There could be mummy enemies or scorpions and thing like that. Also adds an excuse to add spike blocks that act like magma stone, but hurt you from all sides and are semi-transparent.