Knowledge Is Power - Gain % damage against specific enemies dependant on how well you 'understand' them. +% for every item that specific enemy has discovered in the bestiary, +% for owning it's card. Card and Item don't seem too different to warrant two different skills to me, especially since if you already have an enemy's card it's unlikely you have a reason to fight much more of them regardless.
Friends With Benefits - Take % less damage per additional player connected in the current game session.
Manaburn - When under % of current max EP, gain % damage with spells.
Mana Harvester - Melee attacks with wands or staffs replenish % of EP on strike.
Summoner - Summons last % longer, have % more HP, can target enemies % farther away. I list this as a three-in-one because individually they would be far, far too specific to single skills. Only the plants exist on a time limit, only the snowman has HP, only really the cloud has a confining reach.
Conjurer - Summons deal % more damage the closer to the player they are.
Soulbound - % chance for summon to reappear for free as if recast when it's time runs out, summons revive automatically after # seconds of death. Likewise above, paired together because they would be far too specific seperately since it only affects Plant and Snowman. I guess they could be split up all the same.
Party Crasher - When surrounded by 3 or more enemies, gain a bonus to attack.
Archmagus - You gain an understanding that all the elements are meant to work in harmony, none to be focused on exclusively. If your (non-summon) current spell is a different element than the one you previously cast, it costs % less EP and deals % more damage.
Mixed Melee Arts - You gain an understanding that there is no one best way to beat a rabby into the ground. If your current melee skill is different from your last melee skill, it costs % less EP and deals % more damage.
Friendly Neighborhood Grindyman - +% (or +#?) to HP for every sidequest completed.
Archer - Arrows pierce through up to # enemies.
Sniper - Arrows fire % farther away, additionally dealing bonus damage the farther the target is from the player.
Marksman - Arrows have a % chance to Bleed a target, dealing additional damage over time based on the triggering arrow's damage.
Imbued Arrows - The first arrow you fire after casting a spell is imbued with that spell's element. Fire applies burning DoT, ice slows, air stuns for a fraction of a second, earth adds a heavy knockback.
Insult To Injury - Gain +% melee damage against enemies that are currently under any sort of debuff.
Hasty Retreat - Gain +% movement speed for # seconds after taking damage.
The Meek Shall Inherit - Gain +% damage against an enemy for every level higher than you they are. Ideal for speedrunner / low level runs?
Winning Streak - For every equipment slot you have empty, gain +# to all(?) stats.
Health To Wealth - When under 10% HP, gain +% gold from monsters.
Crafty Salesman - For every unique item you've crafted, you receive % discount in shops, gain +% sale value to items that cannot be bought in shops.
Over-Achiever - For every achievement you've unlocked, gain +% EXP from combat(?).
