I think that the invisibility potion should be introduced to cake wars. If the potion is used, the player will not be able to be seen by anybody for 15 seconds. It will cost 30 emeralds to purchase. This potion would be very useful and would allow people to take out each other's cake more easily. While this does seem very overpowered, 30 emeralds would take quite a long time to obtain and the potion will only last for a mere 15 seconds.