Strength of bonds - Ki Savant

something in the people around you brings out inner strength. You understand Ki on a fundamental level unachievable by most people. Who cares if you can't read social situations or books right?! You gain the following benefits:

• You have advantage on insight checks
• When a creature uses an offensive or defensive martial technique you can see you may choose to spend a reaction to memorize the Ki flowing through their body. You may then replicate that technique using a ki point as well as any actions and/or movement required. You may only memorize one technique at a time in this fashion

Additionally when you reach 10th level you may memorize a spell in the same fashion. A spell memorized this way costs 1 ki point per spell level (minimum 1) to replicate. You do not need material components for these spells but if the spell has somatic components it must be hearable when memorized and speakable when replicated. At 15th level the number of spells/techniques you can memorize at once increases to two and again to three at 20th level.