Fire/Earth Elementalsit Build Help

GUILDWARS character summary from gw.coldfront.net
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Classes:
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Elementalist
Mesmer

Attributes:
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[] Energy Storage: 10
[] Air Magic: 0
[] Earth Magic: 11
[] Fire Magic: 10
[] Water Magic: 0
[] Domination: 0
[] Illusions: 0
[] Inspiration: 0

Skills:
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Aftershock
Attribute: Earth Magic
Description: *Updated 1-06-05* Nearby enemies are struck for 26-85 damage. Knocked down characters are struck for 10-56 additional damage.
Energy Cost: 10
Recharge Time: 10

Earthquake
Attribute: Earth Magic
Description: *Updated 1-06-05* You invoke an Earthquake at the target enemy's location. All enemies in that area are knocked down and struck for 26-85 earth damage. This spell causes Exaustion.
Energy Cost: 25
Recharge Time: 15

Immolate
Attribute: Fire Magic
Description: *Updated 1-06-05* Target enemy suffers 2-42 fire damage and is set on fire for 1-3 seconds..
Energy Cost: 10
Recharge Time: 5

Meteor
Attribute: Fire Magic
Description: *Updated 1-06-05* Call down a firey meteor on your target foe. The meteor explodes, dealing 20-94 damage and knocking down anyone it hits. This spell causes Exhaustion
Energy Cost: 25
Recharge Time: 30

Phoenix
Attribute: Fire Magic
Description: *Updated 1-06-05* A firey phoenix rises at your location, burning nearby foes for 20-97 fire damage, and flies out to your target, exploding on impact for an additional 15-75 fire damage.
Energy Cost: 15
Recharge Time: 25

Fire Attunement
Attribute: Fire Magic
Description: *Updated 1-06-05* For the next 36-55 seconds, you are attuned to Fire. You gain 30% of the energy cost of the spell each time you use Fire Magic.
Energy Cost: 10
Recharge Time: 60

Obsidian Flesh
Attribute: Earth Magic
Description: *Updated 1-06-05* For the next 8-18 seconds, the caster takes reduced damage from physical attacks and cannot be the target of spells, but moves slowly.
Energy Cost: 10
Recharge Time: 30



Also, I would use Glyph of Lesser Energy, for use when i use earthquake and meteor. Both of those skills have a knockdown effect, perfect for use with aftershock. With 10 energy storage, i hopefully will be able to cast long enough. Pros and cons?

There are a few skills I've also been considering-
Ether Renewal... This would help me keep my energy up. There are a few things though, like how I don't have any spammable spells with this build and i dont have any enchantments (i think). This would be changed with Obsidian Flesh, so i'll have practically no defense at all.
Flare... I would use this with ER
Any Earth Enchantments... To also work with ER

Can you guys give me any suggestions for this skills? Like if i should include them at all, or what skills i should change them with. I just feel like i'm going to need more energy with the higher-costing skills i've chosen.