Mnemonic Vestment and Inscribe Spell Tattoo

[DarkPhoenixx]

So i am again in my pursuit of finding rarely used feats and making them into something interesting.

Is there anything that prevents a sorcerer use Mnemonic Vestment with Spell Tattoo made with inscribe spell tattoo, other than GM decision that tattoo is not a "written source"?
I think it may be useful to put some non-everyday spells like Identify and Knock into tattoos and use with Mnemonic Vestment.

[Weirdo]

Spell Tattoo wrote:

A spell tattoo is essentially a wearable scroll inscribed on flesh instead of on parchment or vellum.

Mnemonic Vestment wrote:

If the wearer is a spontaneous caster, once per day she may use a spell slot to cast a spell from a written source (such as a scroll or spellbook) as if she knew that spell.

This should absolutely work. If a GM told me the tattoo wasn't a written source I'd look at him funny and show him the above rules text.

[DarkPhoenixx]

Nice, just thought there maybe something i am missing. Thanks!

[blahpers]

Take that, page of spell knowledge!

I'd impose a limit to the number of such tattoos that could fit on exposed, readable areas of the body, but it'd be a pretty decent limit.

[Azothath]

yes - it's a more expensive way to do a Page of Spell Knowledge for 1st or 2nd level spells (Knock being 2nd level). Spell Tattoo is 4* Scroll price...
Once you get to many spells and the vestment it balances out, but I'm not sure it's worth the tattoo price over spellbooks or scrolls.

[blahpers]

Once you get to higher level spells, though, the tattoo is actually cheaper. A 9th-level page of spell knowledge is very expensive.

[Weirdo]

You can only use the Mneumonic Vestment once per day, though, and it takes up the body slot.

By which I mean to say there are pros and cons to either approach.