Ocean cow

A blue cow rarely found in deep oceans with a glass dome helmet to breath, can be brought onto land, and it would have a swimming animation of the legs swimming. It would drop waterlogged beef which once cooked would give normal cooked beef and would drop blue Ocean leather which you could combine with leather Armour to make a leather Armour set 4 points stronger and would make the whole Armour piece look like the blue cow leather. It would be non-breedable so players would have to explore to find it. With a full set of the Armour it would give you 20 seconds of underwater breathing.