1: Don't make radiant fire crystals drop. Instead, make players purchase the Radiant Fire Crystals and reduce the price.
Why? Well, since we use them to heat 5* gear, I think it's best to make players buy them from the depot for a reduced price. It gives the option for players to heat their 5* weapons to the max or just stick with a level-1 weapon / gear.
The reduced price could be:
Warm Fire Crystals: 50energy x100-crystals
Glowing Fire Crystals: 100energy x100-crystals
Shining Fire Crystals: 175energy x100-crystals
Radiant Fire Crystals: 250energy x100-crystals
It'll encourage players to purchase energy and buy 5* fire crystals from the depot instead of being bored and lazy and actually grind for energy. However, players would only care about the crowns / payout for missions like FSC, etc. So, here are TWO solutions.
1) Make monsters harder in Normal through Elite.
2) Nerf Level-1 5* gear down to 60%.
2: Let us combine lower star fire crystals into higher star fire crystals.
The ratio would be 3:1. That means that you would need 3 shinings for one Radiant Fire Crystal.
I know that this idea will receive lots of disagreements, but it's worth a try.
Agreed. Fire crystals are ridiculously overpriced.