Question about mage AOE specs for dungeon farming

[xandorz]

Pyroclasm stun chance is for the entire duration of the spell. Hellfire is 15 seconds long. So 26 / 15 = 1.73% chance to stun per second.
Don't expect it to reduce damage taken much.

First 2 talent points spent in Arcane gives a -40% threat on Arcane explosion, that is pretty huge.

Some math that can be very wrong:
At lvl 22 Arcane Explosion deals 0.5 dmg per mana and 40 dps.
At lvl 20 Blizzard deals 0.625 dmg per mana and 25 dps.

Before taking into consideration spell power or crits I think the values at lvl 60 is around this:
At lvl 60 Arcane Explosion deals 0.65 dmg per mana and 169 dps.
At lvl 60 Blizzard deals 0.9 dmg per mana and 158 dps.

Arcane Explosion gains 9.52% of spellpower per second.
Blizzard gains 4.125% of spellpower per second.

So Blizzard is always more mana efficient than Arcane Explosion although not too much early on.
Arcane Explosion has great dps early on.
Later on Blizzard should deal almost same dps and be more mana efficient than Arcane Explosion.

Spellpower should make Arcane Explosion deal more dps than Blizzard later on since it gains more of it per second.