Alchemist - Brew Potion vs Necromancy Spells

[Minigiant]

The Ectoplasm Master Alchemist Archetype

Extoplasm Extracts

D20 wrote:

Instead of using alchemical reagents in order to create alchemical items (including his bombs, extracts, and mutagens), an ectoplasm master uses reagents such as corpse dust, crystallized ectoplasm, and similar reagents as alchemical catalysts. Just as with standard alchemists, the costs of these materials are insignificant and are comparable to the costs of the valueless material components of most spells.

As a result of his eccentric techniques and use of odd alchemical components, an ectoplasm master has an expanded formula list. He adds all sorcerer/wizard spells of 6th level or lower from the necromancy school to his alchemist formula list (but must still learn each of these spells normally). If a spell appears on both the alchemist formula list and the sorcerer/wizard spell list, the ectoplasm master uses the lower of the two spell levels listed for the spell.

This ability alters extracts and replaces Brew Potion.

So my question is, is that a good trade?

How much does the Alchemist rely on Brewing potions? What Necromancy spells are suddenly seriously worth considering?

[avr]

An alchemist may get some mileage out of potions of enlarge or reduce person, or lesser restoration, but it's not a big deal. Nor are most necromancy spells because an alchemist can't cast spells on enemies, or on corpses to animate the dead. I guess there are a few useful defensive spells like false life.

The discovery which lets you summon creatures with the ectoplasmic template is much more interesting. If you're going to take this template that's the feature to focus on I think.

[Zwordsman]

Its a bit of a necromancy (budnduntis). But I wanted to add a bit but also hoping folk chime in a bit more.

There are actually two weapons which would very much let you pull off some interesting tricks.
Syringe Spear And Injection spear

If you have Infusion on your extracts, I see no reason you can't load them into one of these weapons, and inject them. It becomes something of a pseudo spell strike at that point. Which is interesting...
Syringe spear only gets the one. but injection spear could get a few... but you'd have to load it all with the same Extract as opposed to several different ones. Ray of Enfeeblement would be a good option I think and flavorful as a "form of poison, raised to the limits" fluffing.

I am not certain if you or they would have to roll to "hit" if they drank a damaging spell.. Extracts target the user specifically. not sure if you can dodge something in you persay. They would have to roll to hit themselves which is weird.

All of that said. it does say "drinking it" so it could be argued "injecting it into their body" is not drinking it.... but I feel like it should work. Also its just rule of cool as heck

An extract is “cast” by drinking it, as if imbibing a potion—the effects of an extract exactly duplicate the spell upon which its formula is based, save that the spell always affects only the drinking alchemist.