Trapdoor Spider

The Trapdoor Spider is one of the rarer ways to push your harvest values skyward, because instead of a weather event it applies its own Webbed mutation — described in-game as looking like Bloom but white in color. That Webbed effect carries an x8 sell multiplier, putting it firmly in the high-tier mutation bracket and well above the common weather mutations you stumble into for free.

The catch is access. This is a legendary pet pulled with just a 2.06% chance from digging during the Smithing Event, and it is flagged Limited, so once that event window closes the only way in is the trade market. Because Webbed is a mutation-applying pet rather than a passive grower, its real value is in seeding expensive crops with a stacking multiplier before you sell, layering on top of growth and rarity mutations rather than replacing them.

Is it worth chasing? If you missed the Smithing Event, weigh the trade cost against simply farming weather mutations. But for serious sellers, an x8 applicator that you control on demand is a meaningful edge, especially on slow-growing transcendent crops where every multiplier compounds. Grab it during the event if you can — the 2.06% rate means a lot of digging.