New Mob Idea (Squishy)

My name is Lily. I think that you should add a new mob. It would be called Squishy and it would be a rare mob only found in caves. It can poison you with a poison called Funny Bone. Funny Bone is a poison that is funny and painful at the same time, when it is the funny part if you see a ore it will look like a diamond but when you want to mine it it drops coal (this potion will last 20sec), the painful part is just poison. This mob drops 1 diamond and green wool. When it walks up to you it will walk slowly and then get closer and closer and then it will throw the potion at you (It scoots across the ground when it walks). His weakness is that he can not jump. (He is very hard to kill). To spawn one you have to make a square of green concrete and place one block of white terracotta in the middle of the square. (You can only kill Squishy with a diamond or up sword)

This is what the mob looks like. This but as a square ;) (If you do use this make this mob with no arms or legs) This means a lot to me please add it. ~ Thanks ~