New Potions

A lot of new potions can be added to Minecraft. I would just love to see more. I have an idea for a potion and a change I would like to make. I would like to add a potion on Spider walking. using this you can walk up walls at the rate of ladder climbing. A change I would make to existing potions is when speed is applied. being able to walk right up blocks is good because when your going really fast in areas where the blocks go up one, you have to stop. This gets really annoying so I would like to see this is game too