Toxic World Mod for Minecraft 1.9.4/1.8.9/1.7.10

This mod adds a couple features in that make Hardcore playing a little bit harder.

Features:

• It implements Toxic Rain which will apply the Potion Effect of Poison on you, the longer you are outside in the rain the harder the Effect will be.
• Also some BiomeTypes are Toxic, breaking Ground/Grass Blocks can cause a Toxic Gas to drain out and it will add the Poisen Effect on you...