Simplify Auspicious Incantation description

"For 20 seconds, the next Spell you use is disabled for an additional 30 seconds and you gain Energy equal to 110...182% of that spell's Energy cost. The recharge for Auspicious Incantation is reset, and it has an additional recharge time equal to that Spell's Energy cost."

I really have qa tough time trying to figure out what this means, anyone else think they should simplify what this skill does because i have no clue.

You cast on yourself Auspicious Incantation.
For example we take Meteor Shower. (25nrg 5cast 60recharge)

Meteor Shower will get 90sec recharge. (60+30)
Auspicious Incantation will get 25sec recharge. (25nrg = 25sec)
And you will get 25*(1,10...1,82) energy back (45,5)

Don't bother with that crap, it's entirely useless.

Not entirely. It's decent with Inspired Enchantment.

Auspicious Incantation+Glyph of Renewal+MS= echo nuking with energy management. Crazy ain't it?