I missed a conversion between percentage and multiplier there; I'll fix that in the next version.
The low cooldown was intended, but I think I've come up with a better plan for it.

Thanks for the feedback (and the compliments at the end). I just redid the meteor tree in the most recent update, so it's not as well tested as the rest. I'm usually on Nightmare With Randbosses anyway.

Running the numbers, it looks like Meteor Bombardment is contributing far too much at high talent levels.
Meteor Storm is also a little too strong given the lack of downsides.
I'll turn them both down one way or another.

It shouldn't play a sound if no one's in range; I'll get right to fixing that.
EDIT: And done! I had actually been trying to make it play *fewer* lightning sounds, and really messed it up by looking at the maximum number of targets instead of the current number of targets.

Adding Blighted Summoning abilities has been part of the plan, and now it's included!
What ability they get is in the individual summon description rather than the prodigy tooltip because that tooltip is getting really crowded already.

Updated to match ToM'E 1.6
Negative Energy costs and gains adjusted across the board.
Meteors are weaker, especially on high-level enemies.
Celestial Convergence a little more useful with additional points.
Bugs with Swift Arrival, Voltaic Chain, Planetary Charge's tooltips, and the Gliding Boots have been fixed.
Summons keep their skills with the new blighted summoning.

Bugs

• Paean of Glacial Ice has fixed description.
• Fixed typos and bad descriptions in Paeans.
• Paeans have real requirements to be learned.
• Paeans are sustained with negative energy, not positive.
• Voltaic chain can heal the caster

Changes

• Paean Maelstrom gives penetration for all 3 basic elements automatically. When you switch it should be to protect yourself, not to help your minions.
• Paean Adept gives less affinity at higher ranks.
• Tectonic Rift does more damage and inflicts Spellshock instead of pin. Ice already has a pin and lowering resistances sets up your minions to succeed more than keeping an enemy in place does.
• Astromancers start with a point in Chants.

Bugs

• Voltaic Chain no longer warns you when cast on yourself.
• Volcano targeting is not interrupted by allies.
• Icy Block defaults to targeting you, not the nearest enemy.

Changes

• New sound effects added to Bright Lightning, Voltaic chain, Volcano, Evasive Gust, Braided Threads, and Time Flood.
• Fixed Artifacts using/inspired by Astromancer added. Find the Meteor Staff, Windswept Shield, Molten Hammer, and Gliding Boots.
• Evasive Gust costs more

Changes

• Meteors correctly fall near summons, only meteor, more damage.
• Rebalanced cooldowns and resource costs
• Planetary Convergence no longer permanently makes your hand glow.
• Added particle effects to Icy Block and Bombardment.

Bugs

• Faeros actually gets the listed dexterity now
• Starts with a manasurge-rune to support staff usage until you can use Chant Illuminate

Changes

• New Advanced Class Talents with Time Elemental and Utility effects
• Has a class icon.

Bugs

• Elemental Transposition uses the correct resource
• Tectonic Fissure has a cooldown and doesn't do extra damage on subsequent turns

Changes

• Astromancers start with Staff Combat unlocked
• Glacial Path does less damage
• Chill does less damage but more slow and makes enemies wet
• Gwelgoroth attacks with a 0-cooldown bright-lightning bolt that does slightly less DPS
• Shivgoroth attacks with enemy-only Glacial Vapour
• Faeros move faster and melee attack with Flame Hands