Big axolotls and things!

It adds new mobs a new biome and items that can help you

You can find a Axorogon in Axulands (the new biome)and tame it with Axofood whch is fast and help you travel faster you can find other thing in axulands too

you can also eat axofood yourself (not reccomended)

you can find atobirds too you can feed them with axofood and ride them. They fly randomly and their max speed is your walking speed

you can find them in the new biome too. The new biome is a purple and blue mixed biome 

you can also find the lost axorogon which is very rare and can spawn anywhere in the overworld

another thing you can do is killing atobirds for feather and make a "not so safe" pickaxe which is very fast but breaks easily. you can fix it with the fast feathers ans gold