Omer's Potion Blocks
The Omer's Potion Blocks mod adds special blocks to Minecraft that activate various potion effects when stepped on. These blocks are perfect for creating adventure maps and mini-games, but can also be crafted in survival mode.
Main Features
The mod includes 9 new blocks: 8 blocks with different potion effects and 1 empty potion block. Among the effects are gravity and blindness - gravity is a new effect that makes the player fall faster than usual.