Only a small handful of skills depend on a specific attribute to increase their effectiveness; most of these skills are based around summoning or healing
Taking upgrades to your core skills is more useful than taking many skills with few or no upgrades
You can view more of the skill snowflake by dragging it around
Increases to Memory apply to all of your EXP retroactively
Max Memory Volva (MMV)
The Dev Team claims you only need 10 * (Level + 3) memory to qualify for the 100% MMV achievements (Source)
Skills that boost your Memory (Utilitarianism, etc.) are not required for 100% MMV achievements
Memory will increase the amount of damage you take, but you will also have more attributes and skills available to offset this due to Memory's EXP bonuses
Encounters
You can distribute your attribute and skill points during encounters, but the bonuses from passive abilities may not always activate
Passing your turn with some MP will start you with Floor(MP fom Last Round / 2) + Base MP MP on the next round, caps at (Base MP * 2) - 1
Revealing traps will halve the amount of damage they deal to you
Enemies with ranged attacks, like Harassment, do less damage the farther away you are from them
If an enemy pushes you onto an exit tile that would clear the encounter, you will only be awarded 95% success instead of 100%
Performance
Restart Winter Voices every few encounters to reduce the risk of crashing
Scrolling using the arrow keys is much faster than using the mouse