The third idea, currently unwritten, is some kind of spy subject to some Grue experiment to give them cool shapeshifting powers. Probably uses Strike and Protection for defense, with both Morph and a few ranks of Shapeshift for versatility. I realize that using Shapeshift is going to be a bit of a pain, but I'd probably use a standard configuration most of the time, and only change it in specific instances. It's still a helluva lot less annoying than Nemesis.The problem with just relying on Morph is that it's not much of a power...Mystique seems pretty cool in the X-Men movies, but she's also pretty weak. A hero using Shapeshift, instead of just Morph, seems to be more on the level of the other PCs.
All right, here's the draft of the Shapeshifter with Grue DNA. Thanks for the link Elric, your Martian Manhunter came in handy. By the way, the way you stat out comics characters is nice, since they actually have reasonable PLs. The character's name is Animus, a name largely chosen because it sounds somewhat heroic without any real indication to the characters powers.
A nice thing if you happen to be a shapeshifter.
[sblock]
Animus PL 11 – 172 PP
Abilities:
Strength 14
Dexterity 14
Constitution 18/32
Intelligence 10
Wisdom 10
Charisma 14
20/172 points
Skills:
Acrobatics 8
Bluff 16
Disguise 16
Escape Artist 8
Gather Information 12
Notice 8
Search 4
Sense Motive 8
Sleight of Hand 8
Stealth 8
24/172 points
Feats: All-Out Attack, Benefit: Alternate Identity, Contacts, Distract, Improved Initiative, Luck 2, Power Attack, Uncanny Dodge, Well-Informed
10/172 points
Saves:
Toughness +11
Fortitude +11
Reflex +10
Will +8
14/172 points
Attacks and Defenses:
Base Attack +2
Base Defense +3
Attack Focus: Melee +10
Dodge Focus +8
28/172 points
Powers:
Morph 5 (all humanoid shapes) - Precise
-AP: Concealment 5: All Visual, Hearing – Close –Passive
12 points
Enhanced Constitution 14
Regeneration 16 – Bruise 1 rnd, Injured 1 rnd, Staggered 1 rnd, Disabled 1 min, Ability Damage 1 hour
30 points
Grue Powers Array:
Telepathy 10 – Subtle + Comprehend 2
-AP: Mental Blast 11 – Distracting, Full Round Action
-AP: Strike 8 – Penetrating 8 - Mighty – Enhanced Feat: Improved Grapple, Improved Pin, Improved Critical 2 – Elongation 2 (Free Action)
27 points
Weak Movement Array:
Speed 1, Leaping 2
-AP: Swim 2, Immunity Drowning
-AP: Super-Movement: Wall Climbing 1, Speed 1
-AP: Flight 2 – Limited (Wings)
6 points
Super Senses: Low Light Vision
1 point
76/172 points
[/sblock]
In what language? From what I recall, and what an online dictionary later confirmed, is that Animus means "soul."

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.