Very incorrect. You need to understand the semantics here, and you are using defined terms incorrectly. I am also, since I think I need to go beyond these defined terms, will use all the rules that will help with resolution of this and other powers. If I note a page this is all awithin the Rules Compendium.
What 106 says is this. A target is one of the three things. A creature, enemy, or ally, UNLESS specifically written in the power. If it is a creature it can be an enemy or ally. It [the power] also does not have the distinct notation of "each creature" which means indiscriminately: there is no distinction between friend or foe. This is to define situations with close and area powers though. As in "Target: Each enemy in blast." If it said "Target: Each creature in blast." The warlock can slide and make his allies fight too, even if they do not want to (This is noted later). It says against a creature.
Time to deconstruct this.
The different distinctions for targets are:
Creature, You, Enemy, Ally. You are a creature. if you were not a creature, nothing could ever target you. The definition of what creature means in targetting is pretty clear: "A creature of any sort." You certainly qualify.
Now, since a creature is a creature of any sort, whether enemy or ally. We have to look at the defined terms of enemy or ally and how this will affect the target of this melee basic attack granted by the power (106). The power says: The target makes a melee basic attack as a free action against a creature of your choice. Note, these free actions are to be treated as Other Triggered Effect (194-197).
You've already discounted the fact that you yourself are 'a creature of any sort' and therefore this cannot exclude you from the effect. Just because it goes on to say that it does not discriminate against ally/enemy status does not logically mean it must therefore exclude you.
General:
Creature means a creature of any sort.
For it not to include you, a specific exception must be presented. Otherwise there IS no exception, and therefore you are not excepted.
The target of the Hit effect is the origin square for the MBA which is range melee noted by the melee basic attack. This is range melee 1 unless noted otherwise, not melee 0. Even if the MBA can be melee 0 the target (creature, enemy or ally) is sharing the attacker's space, it is not a personal range (100-101, 239, and 268-269).
Irrelevant. All melee cares about is if the target is in range. Melee 2 does not exclude targets adjacent to you. You can target yourself with a melee attack because you are within the range of the power from the origin square. 0 <= 1, 2, touch, or weapon for all values of these things.
Any creature even if it is enemy or ally can be targeted by this range melee 1 MBA in the adjacent squares of the origin square . If target of MBA is an ally, and the creature defined term is used for the target of the attack, the ally (which is considered enemy by the hero, the warlock would not want to attack what is considered its own ally for that is punitive) cannot disregard the power's affect.
This is true. If the power does not target allies explicitly, an ally cannot choose to ignore it.
[quite[Just 106 prevented the target for targeting itself as a creature because it is not defined.[/quote]
Wrong.
I can be targetted by my ally's powers that target creatures. Therefore I must be a creature of any sort. My powers that target creatures target creatures of any sort, therefore they must target me.
You've placed an artificial constraint on enemy and ally that a creature must be one of those two. The definition of creature in the context of targetting makes absolutely no distinction whatsoever. It says, verbatim: A creature of any sort.
You are a creature, ergo, you are a creature.
If creature did not target you, then you must not be a creature of any sort. Ergo other people's powers cannot target you. As they are also benefitting from this, you cannot target other people.
I strongly advise not using rules interpretations that cause the entire ruleset to break down and stop working completely.
To note, it is also in the literature of the power's resolution-target/against/creature. It is even in the Flavored Text. However, I think you perhaps would rather argue this differently. Like how some comprehend the warlord's power Commander's Strike. Giving the ability of an unconscious ally an ability to attack. This cannot happen since it is not a legitimate target as per rules.
While I won't say flavor text is irrelevant, it is definately not constraining. Using flavor text as an excuse to contrain abilities is a bit farfetched... nor do the rules encourage you to do so.... they do encourage some 'outside the box' thinking.
Not to mention, every power's flavor text would be retarded levels of awful and long if they included every contigency. Oh god, imagine what an augmentable power would look like.
To target the target's self you have to have either a specific, or it will say personal but that is actually a distinction for range. And in this is the Uber caveat. The MBA is melee 1 to the adjacent squares of the origin square, not origin square-again cannot target unless specific is given.
You do not need a specific exception because the general rules allow you to do this.
1) Melee can target yourself. You are in range, and
nothing says you cannot.
2) Creature includes yourself. Creature means a creature of any sort, and
nothing says you are not.
Both have the same logical structure... you have one thing saying that the situation in question would qualify, and it is followed by the complete absence of anything saying that it could not qualify.
To sum up why your argument is wrong: You have yet to present a single exception to the general rules I've noted above that excepts them and makes them not apply to yourself.
No specific means no specific beats general.
However, the ultimate rule: it is your game. But I am a purist. So, therefore this power cannot cause the target of the Hit effect to target itself as a creature using what is given by the power, defined terms, and mechanics.
It is your game. But as a purist, you cannot be adding in inferring clauses the rules do not actually say.