Asuran Avenger's weapons
Copy paste these into a chat tab while on your Asura, then right click the result and choose preview.
Staff = [&AgF9fQAA]
Greatsword = [&AgGGfQAA]
If you want to preview more stuff you can get the codes from a number of sites, for example GW2DB.
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They just look like Glyphic Weapons. Sylvari Avenger weapons are Verdant Weapons, and I’m assuming the weapon skins change accordingly for each race.