Not only for combat @3C273, i like to see how to manage actions in a simultaneous way while keeping the simplicity. Well, i'd check the systems you are telling me. They sound interesting enough.

@A_S00, you are right. I'm going to expand the question.

You are right. I didn't see it there. (I guess there's a workaround for that, but that's another thing).

That adds some other familiars to the example list, like ravens, octopi, monkeys, as long as they are inteligent enough to handle the item. Also ravens and parackets are able to speak the command word, while some constructs couldn't if they are spechless. Also trained animals can handle some items, like dogs learn to do for blind people.

Well, @alttag, i think ceasing concentration is not a free action, but an inmediate action or a not an action instead. If that's the case, then you can perform them at any moment. Otherwise, you can just use an inmediate action or not an action - stop thinking, wondering what's your cat doing at home, forget what you are doing, look to that fly in the wall - that will force a concentration check and you voluntarily fail it to end the concentration outside your turn...

Yes, @ShadowKras, format it properly and reach a final answer, cause i'm lost as it is now...

Your answer is making me think if i have to rephrase my question. For some people to be in a different form is not a part of the supernatural ability but just an effect. Like flesh to stone spell, you cannot turn a person converted in stone back to normal by putting her in an antimagic field. With that interpretation the text does not need to change and the shapeshifted remains in her alternate form.

I agree, but the cost of 100 gp is too low, i'd make it 500 gp. If he has enough to afford a Blood Reservoir, this is not going to hurt his pocket.