royal jelly will be an oasis item that in sub males it could like Vincent Van Goat (#60759) said , like freezeing (without patrolling)for 2 or 3 lioden years the sub male.
you can use it when the sub male reach 4 years old and you can use it only 1 time in the lion life



for example you have the perfect heir and he have 14 years and your king have 13 years old, give the royal jelly to your heir and he will be 14 years old for 2 lioden years and when your king is gone your heir will be king with 10 years old .

for the use of this item the cost could be 5 gb
and will have 1 use per purchase