The PET is a companion that accompanies the player in his little adventures in the game. The pet does not influence the PvP in any way and the other players cannot kill it.
This pack contains many such companions, as follows: Duck, Frog, MiniMe, MP-8, Panda, Penguin, Pug, Shake, Snowman, Turtle, Wasp and Boxer
They are available on the Survival, Factions, Skyblock and Creative gamemodes.