An idea that my friend and i had, a new biome near the desert, a savannah!
Grass: yellowish green, with greener grass near water holes. also, tall grass which is best cut with a Machete, crafted like this:
tall grass slows you down, and can be helpful in hiding from mobs, because it obscures view, and drops tall grass seeds when cut.
Mobs: Lion, agressive, 5 hearts, drops lion heart
Zebra, passive, tamed and ridable with apples, 3 hearts wild, 10 tamed, drops nothing
Elephant, neutral, 15 hearts, drops 5-9 leather upon death
Cheetah, neutral, 5 hearts, drops nitro juice (see below)
Items: Nitro juice, speeds you up by another 20% for 10 seconds
Lion heart, does 1.5 more damage per attack for 10 seconds, and is more powerful for digging, mining, and cutting trees.