Orm's Changes

Spell Slots.

LvL	1st	2nd	3rd	4th	5th	6th	7th	8th	9th
Old 14th	-	-	1	3	5	6	4	2	-
New 15th	6	4	3	3	2	1	1	1	1

 

Spellcasting Ability.

Spell Attack Modifier = your proficiency bonus(5) + your INT modifier(5) + your WIS modifier(+2).

Spell Save DC = 8 + Spell Attack Modifier.

Spellbook.

You should have 21 spells right now... up that to 32.  

Arcane Expertise

At 7th level, you can use 50% of your wisdom as a secondary spellcasting ability.
At 15th level, you can use 100% of your wisdom as a secondary spellcasting ability.  

Arcane Recovery (now 5th level).

Once per day when you finish a short rest, you can choose to recover a number of expended spell slots equal to your Glass Cannon level.
None of these slots can be higher than half your highest level of spell slot.  

Elemental Duality (Subclass)

Bolt is now a 2nd level feature.

Your movement speed increases by 5ft, and you may use the Dodge action as a bonus action.

Become Thor is now a 8th level feature.

Any spell you cast that deals thunder or lightning damage, now deals an equal amount of the other type of damage.

Sparky is now a 14th level feature.

Spells you cast ignore resistance to thunder and lightning damage and you gain resistance to thunder and lightning damage.

Removed Features

Dual casting. Gone... permanently.

Lossless Magic. Gone... Spellslots restructured.

Metamagic. Replaced by Mastery of casting

Mastery of casting

As you level up, your spell casting technique becomes fine-tuned.
At 3rd level, you gain one of the following masteries of your choice.
Your skill increases again at 9th, 13th, and 17th levels.
The strength of the mastery you choose is dependent on the level you are at when choosing it.

Range. All spells you cast with a range of 5 feet or greater have said range increased by 10ft(3rd), 30ft(9th), 60ft(13th), or 100ft(17th).

Durration. All spells you cast with a duration longer than instantaneous have said duration increased by 1 turn(3rd), 1 minute(9th), 1 hour(13th), or 1 week(17th).

Damage. The damage of all spells you cast can be re-rolled for a spell slot of equal level(3rd), 2/3-level(9th), 1/3-level(13th), or 1st level(17th).

Target. All spells you cast that target 1 or more creatures have the number of targets increased by 3(3rd), 5(9th), 10(13th), or 15(17th).