School of Osmosis

Instead of focusing on teaching a specific type of magic, this tradition focuses on understanding the effects and causes of arcane sources. Many call this tradition the “School of Madness” for their unorthodox ways of learning through self-exposition to magical effects of any kind.

Members of this tradition can detect the core mechanisms of any spell or magical effect and it’s connections to their sources by receiving the effects.

Osmosis Savant

Beginning when you select this school at 2nd level, the gold and time you must spend to copy a spell or magical effect you learn through osmosis into your spellbook is halved.

Osmosis

Starting at 2nd level, any time you are affected by a spell from any class, if you survive the effect, you may learn said spell if it is a spell you can prepare. If you don’t copy this spell into your spellbook before 24 hours you forget it and can’t use it until you learn it again.

Any spells you learn from other creatures are considered wizard spells and the spellcasting ability for those spells is your intelligence.  

You can also replicate non-attack actions from other creatures. If you survive the effect of the action, you may learn said action as a 1st level spell, it becomes a wizard spell for you. If you don't copy this action into your spellbook before 24 hours you forget it and can’t use it until you learn it again.

Intuitive Knowledge

Starting at 6th level, you don’t have to spent any time to prepare spells if you want to change your list after a long rest since your experience in osmosis makes the incantations and gestures intuitive for you.

Additionally you can use your bonus action to change a prepared spell to any spell on your spellbook.  

Empathic Learning

Beginning at 10th level, you have experimented so much that you can understand magical effects by seen other creatures reaction to them. You can learn a spell by watching a magical effect affecting a creature in your sight as if you were the target for it.

Arcane Understanding

Starting at 14th level, you can add 3 spells total from any combination of classes to your spellbook, if they are not wizard spells already they are considered wizard spells and the spellcasting ability for those spells is your intelligence.

Return Magic

Also at 14th level, You have reached your goal as an osmosis master and you have acquired the knowledge to learn and replicate a spell instantly.

When you become a target of any spell or magical effect you can use your reaction to cast that same spell at the same level as a wizard spell if it isn't already with intelligence as the spellcasting ability. This ability consumes a spell slot of that level, if you don't have a slot of the same level left you can't use this ability.