Beastmorph Alchemist

[born_of_fire]

Is there any reason to take feral mutagen as a beastmorph alchemist? The character will be at least level 8 to start.

Aside from the obvious tumour familiar, what discoveries do you suggest for a vivisectionist beastmorph alchemist? No bombs takes a lot of them off the table.

Do I pick the beastform I will take with the mutagen when the mutagen is brewed or when it is imbibed? Can you change from one form to another during a single mutagen? Choosing a single form for the entire duration when imbibed seems most reasonable.

[Derklord]

1. You don't get natural attacks from your Beastform Mutagen, so Feral Mutagen is useful as normally. Well, even more so, actually, because you get Pounce at 10th level and natural attacks + pounce is a very potent combination.
2. Feral, Infusion, Spontaneous Healing, Preserve Organs, Mummification, and the advanced mutagen ones are the natural choices.
3. "He may select a different ability each time he creates a mutagen."

[nicholas storm]

At 8th level I had feral mutagen, tumor familiar, spell knowledge (taken mainly to qualify for arcane strike and craft wondrous items), infusion, and vestigial arm.

I play a ratfolk alchemist that rides on his tumor familiar (mauler archetype) with the scurrying swarmer feat, so he always flanks anything his familiar attacks.