Magna Aegwynn by lucky-tiger

Your aa deal ability damage to an aoe, but with a really slow aa speed.

Every 480 damage (charge up) done to enemy heroes with your basic abilities grant you an arcane charge. your next aa will consume the charge and increase the aa speed by 300% (1.6) for 2 seconds. The stack and the charge up is lost after 5 second of not dealing ability damage to enemy heroes.
The damage required to charge scales with level.

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aa slows targets by 20% for 1.5 seconds.
aa reduce abilities cd by 0.25 per hero hit.
aa deal additional damage equal to 1.5% of all target's max hp.

Skillshot hit the first enemy hero dealing 60 damage, and than shot 3 additional shots at the target within 1.5 sec if its within range dealing 60 damage each.

4 sec cd.
30 mana.

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hitting all 3 additional missiles reduce targets spell armor by 15 for 4 seconds.
hitting an enemy hero grant 25% speed for 1.5 sec.
generates 25% more ARCANE CHARGE.

Gain 30 armor for 2 sec, after the duration end heal for the damage blocked.

damage absorbed also charge up arcane charges.

12 sec cd.
60 mana.

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being stunned while active increase healing by 200, can occur only once.
lvl 20- taking fatal damage while active grant you protection instead. 60 sec cd.
at the end create and explosion, dealing 80 damage +35% of damage blocked.
enemies that damage you while active have their speed reduced by 25% for 2 secodns.

Place a nether tempest on target aoe for 2 seconds, it deals 80 damage per sec to enemies within. After the duration ends explode for 50% of total damage done with the ability to heroes.

8 sec cd.
40 mana.

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explosions above 160 damage (scales) pulls enemies to the center.
dealing damage with [Q] ARCANE MISSILES increase explosion damage by 30% of damage done.
you gain 100 shield per second while standing within the aoe, explosion damage is increased by 50% of shield generated.

summon a familiar at target location, hitting a hero with ARCANE MISSILES will cause the familiar to shot a missile at the target too (if its within range), dealing 60 damage.

last 10 seconds.
2 charges, 30 sec cd.

After 0.5 sec delay, blast enemies at a medium width line in target direction, pushing them a long way, if they hit a wall they take 300 damage and are stunned for 1 sec. (not as wide or as long as gust)

60 sec cd.
70 mana.

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Use the remaining powers as a guardian to empower your abilities, and reduce cc duration by 50%.

[Q] ARCANE MISSILES- now shots missiles at 2 additional enemy targets near the primary target
[W] TEMPORAL SHIELD- cd recharge 100% faster.
[E] NETHER TEMPEST- increase size by 50%.

last 15 seconds
90 sec cd.
120 mana.

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aa vs enemy heroes reduce cd by 2 per hero hit.