There are other Elemental Schools with similar spells:
Dragon's Breath (Fire) -> 8 Dice for 12 Mana (2/3 dice per mana) + up to 4 Burn eventually
-> Hawkeye, Fireshaper Ring, Curses from Adramelech Warlock ... and you roll 12 Dice for 12 Mana.
(very action costly preparation, armor is efficient against 2 separate attacks, but burn is the main reason to use this spell, best burn probability of all fire spells)
Thunderbolt (Air) -> 6 Dice for 10 Mana (3/5 dice per mana) + Daze/Stun eventually
-> Hawkeye, Lightning Ring, Staff of Storms ... and you roll up to 12 Dice (Stun 3+) for 10 Mana.
(very action costly preparation, high amount of dice negates high Armor)
and Hurl Meteorite (Earth) -> 9 Dice for 12 Mana (3/4 dice per mana) + Daze/Stun eventually
-> Hawkeye .. and you roll 10 Dice
(less Equipment needed, high amount of dice negates high Armor)
On the first look, they cost a lot of mana for the raw dice they can do, but you can buff them with equipment and enchantments to a very deadly level. And there are 2 other good things about them:
1) Range 3 is a very big advantage. You can force the enemy to come to you or surprise your opponent.
2) Full Cast can be a disadvantage, but also a advantage. These spells cannot be blocked by Jinx.