Cards I think could easily be cut:

Web- worst of the reach cards

Auramancer- Better options, see below

Heliod's Emissary- not worth the mana

Nyxborn Rollicker- not useful

Restoration Specialist-have to sacrifice only hits single one

Angelic Gift- flying worse than anything else, draw is unnecessary

Brilliant Halo- nice recursion, but not that great

Eternal Warrior- doesn't do enough to include

Forced Adaptation- too slow

Gift of the Woods- too niche, point is to not be blocked

Instill Energy- haste is eh, untap is basically vigilance, not really necessary

Knightly Valor- CMC too high

Mammoth Umbra-

Ordeal of Purphoros- slow for what it does

Regeneration, Savage Silhouette, Serpent Skin, Trollhide- Most wraths get around the regeneration anyway, you can afford to lose anyone to spot removal except your commander... which is already hexproof.

Venomous Fangs- your chump blockers don't need it, Uril's gonna be huge already

Vigilance- not enough in this deck

The Three Vows- Irrelevant as they can still block your guys. Maybe one if you do a lot of multiplayer.

Nyxborn Shieldmate

Entangler- high CMC

Vigilant Martyr- same issues with regeneration, at the very least replace with Dawn Charm

Venom- meh all around

Open the Vaults- replace with Retether/Second Sunrise

Cards that are on the verge:

Auratouched Mage-higher CMC, but it does open up more expensive auras

Conviction- Better than Brilliant Halo, still not that great

Fists of Ironwood- Superfluous

Hammerhand- meh card

Lifelink- Nice art, unless you're getting a lot of direct damage, not that helpful

Lightform- Looks okay, too many non-creatures though

Murder Investigation

Oath of the Ancient Wood- Faster than the ordeal cards, no other benefits though

Shape of the Wiitigo, Shield of the Oversoul, Hyena Umbra, Glaring Aegis- You have to cut something

Indrik Umbra-Keep if you can find something else to go easily.

Cards you should consider adding:

Retether- Bodiless Auramancer but better

Second Sunrise- Get passed their wrath effects, not a first choice though

Lightning Bolt- Spot removal is nice

Dawn Charm- See above