So what kind of skills would you be looking at?
Dimension Shaping
Well the primary attribute would be the most important. It adds a new skill type called dimensions. They can't be removed unless the shaper is killed.
Each attribute point in dimension crafting also gives you 1 extra max energy, an extra 16 in total.
One A couple of dimensions could be:
Dimension of Metallurgy
All Fire damage is changed to Slashing damage, all Ice and Air damage is changed to Piercing damage and all Earth damage is changed to Blunt damage.
Dimension of the Vampire
Every player has 1 health degen but any melee or projectile hit becomes vampiric.
(swords, axes, daggers, wands and staffs gain 3 hp, Hammers, Scythes and Bows gain 3)
Dimension of Variation
All skills have a 30% to activate 50% faster. If the skill isn't activated faster, it has a 50% chance to activate 25% slower.
(this skill must have a completely crazy cast time like 60 seconds because you have to give a fair chance to spikers to counter this)
Dimension of Trust
Players receive -1 health degen for every party member out of radar range.
Dimension of Genders (not sure about this one, people could get upset, but it's still funny)
Players receive +1 health regen for every party member of the opposite gender in radar range and -1 health regen for every party member of the same gender in radar range.
Dimension of Insanity
All skills in the skillbar are scrambled to a different position. (so for example if you'd have 'sever, gash, res sig' on your bar if could be switched to 'gash, sever, res sig'.
Dimension of (something bullet-time or the matrix related)
All projectiles move 20% slower.
(this would cause more misses and dodges)
Magnetic Dimension
All ranges (nearby, adjacent, shout range, aggro range, etc apart from radar range, wards, aoe spells, wells) are decreased by 20% and all players move 5% slower.
Obviously these dimensions would have a HUGE casting time seeing as how most of these dimensions can completely change the metagame on their own. Also many of these require you to think out of the box to make a team. The downsides are that it applies to everyone, that you can't move while casting, obviously. All other skills are disabled while casting except for the multitasking skills.
Multitasking.
This attribute line consists mostly of skills that are useless (they would appear like uncharged adrenaline skills) unless you're shaping (or casting) a dimension. Obviously while shaping a dimension all other skills don't work.
For example:
Untouchable Aura 5 energy 1 cast time recharge of 120 seconds
While shaping a dimension, you have a 1%...10% chance to evade attacks.
(shaping dimensions can take very long, like a minute so the recharge has to be huge as well)
Share in the Creation 10 energy 5 cast time 5 recharge
Resurrect target ally with 30...60% health and 10..30% energy while shaping a dimension. If the dimension dissapears, the ally dies along with it.
(only happens if the Shaper that created the dimension dies)
Well of Mending 15 energy, 2 cast time, 20 recharge
Create a Well of Mending while shaping a dimension. All allies and foes standing in the Well of Mending receive 2...4 health regen.
Evil Creation 15 energy, 3/4 cast time 60 recharge
While shaping a dimension, Evil Creation hits foes for 15..75 chaos damage the first time they enter your range.
The general idea is that these skills are a little bit weaker than the specialised counterparts in other professions, but strong enough to be worth using and not make this profession comepletely boring because of the long casting times.
The third attribute line is for party-wide enchants. Ritualists and Paragons already are a sort of alternative for monk protting or at least can support, but not so much a support for the healing. You could think of this attribute line as a sort of alternative heal support. We could call it ..
Positive Shaping
Dimension healing 10 energy 2 cast 4 recharge
Heal the entire party for 10...40 points. For each existing dimension Dimension Healing heals for an additional 5 points (maximum 6 dimension, 30 extra)
Dwayna's Shaper 15 energy 2 cast 45 seconds
For 20 seconds party is enchanted with Dwayna's Shaper. When you are hit, you and the party are healed for 2..8 points.
Shaper's effort 10 energy 3/4 cast time 1 recharge
All party members lose 10...8% health. Target other ally is healed for 100..115% of the total health lost by Shaper's effort.
Basically these are all variations of monk skills to work for the whole party, but tuned down a bit because monks should be the most powerfull healers by a small margin just as warriors should have more pressure by a slight margin over other warrior alternatives.
Because we have positve shaping we also need negative shaping.
Negative Shaping
This attribute line is not so much offensive but more disruptive. Most of these require dimensions to be up, but not necessarily.
Temporary Relief 10 energy 3 cast time 30 recharge
For 1...10 seconds the effects of the oldest 3 dimension are nullified. Adds a second for every extra dimension on the battlefield.
Light of the Golden planet 25 energy 5 cast time 60 recharge
Hex spell, for 10 seconds all male foes (that would be in radar range) receive 1 energy degen.
Light of the Red planet 25 energy 5 cast time 60 recharge
Hex spell, for 10 seconds all female foes receive 1 energy degen.
(In pve these skills would work on randomly 1 out of 2 foes, unless they are recognisable, like human enemies, maybe as a tolkienesque joke, 1 out of 4 dwarves would also be affected by the light of the red planet)
Reality Check 5 energy 1 cast time 10 recharge
Interrupt target foe. If target foe is succesfully interrupted, Reality Check adds 1..3 damage for each dimension on the battlefield.
So there you have it, the Shaper. Obviously this needs some tweaking for balancing issues, but the potential to change the game is huge. In some cases you might even get hide-and seek in gvg's to find the shaper before he casts too many dimensions

So what would it look like? Mostly shapers look like your typical wizards, long robes with a wand or staff, off-hand items could be tomes and books of some sorts, long hair. The headgear would be a sort of light coming out of their eyes, just to make it look cool.