Hi,
I suggest implementing the Juice Festival item "Wildfire Element Fruit Cordial" (ID:240063) in the itemshop. It provides a 5% patk/matk buff that's mutually exclusive with the ostrich buff and would be a huge quality of life improvement, since you wouldn't need to place ostrich on the ground first and wait for the right buff.
Moreover, assuming a similar price, ostrich would still be the more economical option for players that don't mind waiting for a bit and share it among the group. Hence both items would have their use.