Fierywork

Fierywork is a genuine appearance mutation that hands a crop a x30 sell multiplier, a solid mid-tier boost that turns an ordinary harvest into a meaningfully more valuable one without sitting at the rarefied top of the multiplier ladder. Thirty times base is enough to feel every time you sell, and on a high-value fruit it adds up fast.

Its trigger is event-driven and seasonal: the mutation lands while Fiery Fireworks are exploding, tying it to firework-themed celebration moments rather than ambient weather. That makes it a timing play, you want crops in the ground and ready to absorb the effect during those firework windows, since the mutation only rolls onto produce while that condition is active.

Where Fierywork earns its keep is in the stack. As a x30 appearance mutation it multiplies alongside growth mutations like Gold or Rainbow and other environmental modifiers, so it slots cleanly into a layered build instead of competing with them. It will not single-handedly carry a sale the way a triple-digit multiplier does, but it is well worth catching when the fireworks fire, especially if you can land it on a crop that already carries other mutations to compound the payout.