Astral

Astral gathering is unlocked at Level 25. In astral gathering, you can spend an amount of gold to obtain one random astral. Each astral gathered may also unlock the next astro, allowing you to collect a better astral from it. Every astral gathered also grants one or more Star Points, which can be used to buy special astrals.

Once you gather an astral, you can choose to sell, synthesize, or collect it. If you choose to collect or synthesize it, you won't be able to sell it later (though you will be able to synthesize already collected astrals).

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The Great Debate: Enhanced Will Destroyer Mage or Crit Mage?

http://thewartune.tk/critmage-ewd-mage-summary/

Future Astral Spoilers From China