I'd rate EMA better than the summon with that build, but in case you want them both, just go Wizard23/WM5/Fighter2, or the rogue one as Ulir suggested. Undebatably grabbing an UMD/Tumble class is the way to go and more CL is never in vain.

I won't delve too much into the assassin thing, but would 14 levels be sufficient?

Then I .. need to ask one more thing. I don't mind the mediocre DCs, but I would like to know how many of the new abilities I will be able to get with 14 levels? I would have to say tata to Murder and Kneecapper's Knife, eh?

This kit contains the various tools and liquids needed for a skilled assassin to perform and execute her special underhanded techniques. Every last bit of this equipment seem engineered towards a single minded purpose; killing it's target as efficiently as possible. As the assassin's skill progresses, so does the complexity of her attacks and techniques.

//OOC Note: To use these techniques, simply use the kit and select which one to use. All of these abilities have a cooldown of 1 turn once a target has been hit by this (saving throw rolled, not failed save VS effect) before another attempt can be made. The cooldown is universal and will persist for 1 turn even if you change which ability to use. Note that you do not have to reapply it after each use, the ability will be activated and on your weapons for 1 Turn per Assassin level.//

Braining Blow (Stun) (2 rounds, will)
Head injuries are especially traumatic, and the Assassin knows this. Heavy, blunt force dealt by a pommel or leaden arrow can temporarily stun a foe, leaving them vulnerable to a follow-up strike.

Shrill Strike (Deafness) (Turn/assassin, fort)
The importance of the sense of hearing in combat is not lost on the Assassin. An attack upon the auditory organs leaves the ears of the Assassin's foe ringing painfully.

Beshaba's Favor (-d4 all stats) (supernatural permanent, doesn’t stack, will)
The Assassin becomes adept at turning disadvantage to advantage, weakness into strength, bad luck into blessed fortune. Provided, that this misfortune falls upon the Assassin's victim.

Stalker's Throat-Dart (Silence) (1 round/ assassin, fort)
Landing a blow to the throat is one of the most difficult attacks an Assassin can make. By no chance, it is also one of the most rewarding.

Induce Amaurosis (Blindness) (1 round/assassin, fort)
The Assassin knows that something as innocuous as a culinary spice can have more malign uses. Pepper, thrown into the eyes of the foe in the heat of battle, leaves them a bit burned.

Blade of Terror (Paralysis) (1 round/assassin, will save to counter)
The appalling viciousness of the Assassin's assault cows the target into submission. The assassin may make a death-attack that causes overwhelming fear to the target of this ability.

Bloodlet (Leveldrain) (supernatrual permanent stacks, fort)
The Carotid and Femoral artery are prime targets for a cutting or piercing strike. An accurate slice can cause the most extreme case of profuse bleeding: untreated, such a strike is as good as a death-sentence.

Kneecapper's Knife (Knockdown) (Rounds/3Assassin, reflex)
The legs are a promising, if difficult to hit, target. They are often more lightly armored than the torso, as even the most rigid plate armor has many joints and thin parts in its metal.

Murder (Death, death ward ignored, fort)
The most valuable and feared tool at the Assassin's disposal is not their famed agility or skill with blade or bow, but their knowledge of anatomy and flagrant disregard for the niceties of honorable combat. This attack leaves nothing about the Assassin's motives to question. A feint, a flash of steel from the shadows, or a careful shot: a strike made with the intent to bring their target down instantly, no matter the cost.

22 Barb/7wm/1rogue

Plausible?

Ughhhh 24 Barb 2 Bard 4 RDD. . .thats terrible.

Works wonders. You only need to spend a feat on Heavy Armour proficiency, and since you get extra STR you don't need to MAX your STR attribute, This makes your stat sheet look tad nicer as you don't really need a dump stat.

Resilient and sturdy, with looaaads of Hp.

Dragonshape Druid - need improved unarmed strike? I'm thinking of all the potential Attacks of Opportunity. Looked at the builds on page 58 and didn't see it mentioned.

May be, But the option is out there. It's not up to me to decide whether it's a good or bad thing for the player's RP, I just provide the builds.
Needles to say i'm quite confident that the player making such a character will regret himself/herself in the future, Or go the full length of 10Rdd or come up with an excellent excuse to why there's only four levels.

Don't need Improved Unarmed Strike, it's treated as a creature weapon (except for Improved Critical) so you won't trigger Attacks of Opportunity.

I believe this is the 3rd time this conversation has come up in this thread: the classic conundrum of Acceptable Cheese vs. Nasty Dirty Shame-On-You Cheese. That's usually when Tormak locks it off and starts a new one.

Take her away, boys!