Dragon Age II, Part 2: The Qun is pretty deep, you wouldn't understand it.

[Lord of the Helms]

No loss. As Candle Jack said, the only one of those worth using was freeze + stonefist/crushing prison. Which the new brittle + other class' skills mimics nicely.

Storm of the Century. Grease Fire. Shockwave. Entropic Death. Improved Drain. Plus all-around a wider selection of spells offering far more tactical options, especially with superior range and battlefield control.

Now, it was totally and insanely unbalanced (especially Storm of the Century) , and nice that they tried their best to balance classes better in DA2 as well as improving cross-class cooperation, but for all its over-poweredness, the magic in DA1 was still way more complex and fun, and really made you feel like you had a large-scale, long-range effect in fights.