Mutation Invasion plans

A list of plans $$

Events
Rare and ultra-rare plans from mutated events can be obtained from opening mutated packages and mutated party packs. Both can be traded with other players. Once learned, the same plan will not drop again. Rare plans have a 66.6% chance to appear in packages and packs, each individual plan has a 2.08% chance.

Ultra-Rare Plans
Ultra-rare plans have a 33.3% chance to appear in packages and packs, each individual plan has as 12.5% chance. There is also a 2.08% chance of getting a recipe for a healing salve instead.