So here's one of my champion's spell book.  it seems like there's a lot of vertical space that could be put to better use displaying the spells.

Here's one of my hero's with her jumble of abilities:

"Burning hands" - melee ability

"Disrupt" - utility function

"Escape" - utility function

"Fireball" - offensive spell

"Wind shield" - defensive spell

"Haste" - utility spell

"Cloud of Fog" - defensive spell

"Lightning" - offensive spell

"Storm" - offensive spell

"Titan's Breath" - offensive spell

"Defend" - melee ability

"Healing Potion" - utility ability

Seems like there should be an option to organize these spells by type.  They could be sorted into rows by use.

Offensive spells: [Fireball] [Lightning] [Storm] [Titan's Breath]

Defensive spells: [Wind shield] [Cloud of fog]

Melee: [Burning Hands] [Defend]

Utility: [End Turn] [Disrupt] [Escape] [Haste] [Heal Potion]

Or sorted by spell type.

Fire spells: [Burning hands] [Fireball]

Wind spells: [Wind shield] [Cloud of Fog] [Haste] [Lightning] [Titan's Breath]

Other: [End turn] [Disrupt] [Escape] [Defend] [Heal Potion]

Or sorted by spell level, etc...