How much is an Enraged Zombie Spawn Egg worth about, especially if selling to a collector? Also, are there any rules against selling prizes from staff hosted games?
This is a price check for promos on emc: https://empireminecraft.com/threads/the-promo-prices-thread.75529/ you can get the Enraged Zombie Egg Price there. There is also no rule against selling the prizes from staff events.