Since Krampus Has Presents why not make the presents spawn stuff like a Corrupt Elf, Explosives Or if collected by the krampus himself it gives him more power and becomes more monstrous gradually growing his horns Capping at 10 presents
Upon death spawn a swarm of Corrupt Elves.
Q If it it hit Nothing krampus will reach into its sack and Grab A wind up robot that heatseeks to the nearest player shooting them or A Very sharp candy cane which increases punch damage to 15