Health Regen - Restores a portion of health after successfully finishing a battle.
Battle Challenges - Allows small amounts of battle chips to be earned by fulfilling certain requirements during a battle, such as "No Magic" or "Do 15 Vertical Attacks".
Gem Store - More gems available for sale.
Blacksmith Discount - Blacksmith upgrades items for lower Gold prices.
Second Chance - Once your health hits 0, you are automatically revived with a portion of health left. Does not work if used in the previous battle.
Super Gem Store - Overall more gems available for sale. More expensive gems available for sale as well.
Attack
Combos: Allows basic Light, Heavy and Dual weapon combos to be performed. Exclusive to Siris.
Weapon Custom Combos: Allows a weapon's unique combo to be performed for extra damage. Exclusive to Siris.
Mega Hit: After using the Super move, Mega Hit becomes available as an empty gauge. Mega Hit can be filled and unlocked for use after dealing enough damage with the Stab/Slash prompts.
Discount Card: Merchant sells her wares with a greater price reduction percentage.
Item Upgrade Slot: Unlocks 1 free slot for item upgrades when visiting the Blacksmith.
Chip Booster: Doubles the amount of battle chips earned by fulfilling certain requirements during a battle. Requires "Battle Challenges" Health skill to be unlocked for this to be of any use.
Shield
Super Attack: Unlocks the Super move, which can be charged by dealing and taking damage. Exclusive to Siris.
Super Attack Speed: Increases charge rate of Super move.
Merchant Speed: Merchant visits the Hideout more frequently.
Mega Shield: Decreases the rate at which shield points are lost by blocking enemy attacks.
Gold Finger: Find more Gold bags in the world.
Potion Master: Multiplies the magnitude of all potions acquired after this skill is unlocked by x10. Increases maximum potion carrying capacity to 35.
Magic
Ingredient Plus: Collect 2 ingredients instead of 1 when finding potion ingredients in the world. According to in-game description, exclusive to Siris.
Fast Magic: Increases Magic move charge rate. Exclusive to Siris.
Ingredient Max: Doubles maximum potion ingredient carrying capacity to 20.
Faster Magic: Further increases Magic move charge rate. Exclusive to Siris.
Gold Megaboost: Success in battles give more Gold, when they drop Gold (does not increase the value of non-Gold items.
High Archmage: Multiplies the level of all Magic spells by x10. Exclusive to Siris.
Skill details - Isa[]
Health
Gem Removal: Allows attached gems to be removed from items at a price.
Potion Boost: After using a potion, the effects persist for 2 extra battles, allowing them to last 3 battles instead of 1.
Potion Mixing Slot: Unlocks 1 free slot for cooking potions at the Potionmaster's laboratory.
Rare Merchant: Merchant is more likely to sell rare items.
Blacksmith Speed: Blacksmith takes less time to upgrade items.
Free Gem Removal: Allows attached gems to be removed from items, free of charge.
Attack
Combos: Allows basic Light, Heavy and Dual weapon combos to be performed. Exclusive to Isa.
Weapon Custom Combos: Allows a weapon's unique combo to be performed for extra damage. Exclusive to Isa.
XP Megaboost: Success in battles give more Experience.
Attack Window: Adds +1 extra hit to Block/Dodge breaks, or +1 second to Parry breaks.
Gem Fusion Slot: Unlocks 1 free slot for fusing gems at the Gemcutter's laboratory.
Gem Master: Fusing gems produces more valuable results.
Shield
Super Attack: Unlocks the Super move, which can be charged by dealing and taking damage. Exclusive to Isa.
Cauldron Speed: Potionmaster takes less time to cook potions.
Merchant Cargo: Merchant has more wares for sale.
Gem Fusion Speed: Gemcutter takes less time to fuse gems.
Green Thumb: Ingredients can be found more often in the world. Allows you to use more ingredients to cook potions at the Potionmaster's laboratory.
Master Looter: Collecting just one item in a particular area collects ALL items in that area.
Magic
Lock Pick I: Allows opening of certain chests (stone slabs that Siris pushes and lanterns that Isa shoots at).
Fast Magic: Increases Magic move charge rate. Exclusive to Isa.
Lock Pick II: Small keys are no longer required to open green chests. Exclusive to Isa.
Faster Magic: Further increases Magic move charge rate. Exclusive to Isa.
Lock Pick III: Medium keys are no longer required to open yellow chests. Exclusive to Isa.
High Sorceress: Multiplies the level of all Magic spells by x10. Exclusive to Isa.
Trivia[]
Second Chance may sometimes fail to work during the next battle when it has already been used in a previous battle.