It's not often you meet a fighter with magic, but through long meditations and grueling training you managed to subjugate the Weave to your will. You don't fully understand the nature of your spells, you just believe, and your belief is put into action.

Will Weaver

At 3rd level, you learn to weave power of your will to create a magic effect.

Choose a spell of 2th or 1th level from any class. Wisdom is your spellcasting ability for that spell. Each time you use your action surge you can cast that spell.

At 10th level you can Choose a new spell of 5th level or lower.

Meta Play

When you cast a spell you can choose one of the following additional effects

Twinned Spell

When you cast a spell that has targets, you can double their number.

Distant Spell

When you cast a spell that has a range of 5 feet or greater, you can double the range of the spell.

When you cast a spell that has a range of touch, you can make the range of the spell 30 feet.

Quickened Spell

When you cast a spell that has a casting time of 1 action, you can cast it at will instead.

 

DM Intevention

You can choose one of the powerful enhancements to your spell. You can ask the GM or make one up yourself.
For example, you can choose to let your [Dimension door] spell bring a non-willing creature if it fails a saving throw of constitution.

I wish...

On 18th level you can cast the Wish spell at will, but you allways suffering "The stress", not only when trying to produce any effect other than duplicating another spell.