This is how MSM tends to work, usually.
The normal (common) monsters tend to cost some regular currency. (Coins for Wubbox, Relics for Fire monsters)
The Rare monsters tend to cost Star Power. (Rare Wubbox, Rare Fire expansion, Rare promotions)
The Epics usually cost diamonds. (Even Fire monsters)
That's just how the rarity convention usually goes. Coins/Relics, then Star Power, then Diamonds. And with with these being Quads and Quints, they're gonna be expensive. REAL expensive.
Considering that an Epic natural Quad usually costs 750 diamonds in the market, that means an Epic FIRE QUINT is extremely likely to be up in the 1000s range. 1000-1750 if I had to guess.
Just in case this is true, the dedicated players should keep that into account when wanting the eventual Epic Fire Expansion monsters, and should consider stockpiling diamonds.
Right now, the Rare Quints aren't even finished yet, so this isn't a worry at the moment. Just a thought, however.
