Thanks Haruto and Oleg for the explanation: mutant it is then. And thanks (yet again) Murkalael for the new loot. OP has been updated. Edit in: Like Wournos said, next VU it will change. But until then: The availability varies a lot, depending on which maturity has been hunted before you arrive. What can help (besides killing/turretting all other maturities) is to go hunt with somebody who has a different maturity mission than you. That way you help each other (and hunting together is usually more fun than alone ). And perhaps share in local chat what everyone is hunting. If they know what you're hunting, others can help by not killing the maturity that you need (and vice versa). Luckily I haven't seen anyone 'stealing' a mob on purpose. A bit of communication and cooperation can go a long way.