Icons linked to the TFT specific 750 RP eggs

I bought a pack of 10+1 random eggs and ended up getting a fully upgraded basic Shisa. The odds of which I assumed were very low. I love Shisa and had planned on getting the 750 egg and icon after, but now I don't know what to do. I can't buy just the icon and I assume that if I buy the specific egg it will just show me my level 3 Shisa again. Does anyone know if it will have a chance of dropping another Shisa or something? I wish it could be discounded to the price of an icon or give me a different Shisa or something.