Paths of Destiny - How to Show Wisdom? (The Witcher 3: Wild Hunt)

SpoilerDrain the aunt with spoons (main branch quest about wichta)

complete the additional quest "Brotherly Love", but only correctly ...

Be guided by your brains when making any decision. I completed both of the above proposed quests after I received the sword.

Win a gwent tournament.

You can also save the girl who turned into a tree (you have to be polite with the witch and do everything like in a fairy tale)

Spare Charley (in the arena), Buy your own painting (in the quest with the artist) and something else. If you carry out all the side effects, and not just the main plot, then the game itself will tell you. As a result, you will receive the sword of Arondit