Ability Upgrades & Cards

Once your character finishes the 5th class change, it gains Extra DMG and Extra DMG DEF. Extra DMG comes in three kinds and triggers when you use Upgrade Skills (from the 4th class) or Ability Skills (from the 5th class). You get access to it by equipping a Nuke, Bolt or Wide card in the Ability Upgrade Core; Extra DMG DEF is the stat that protects against it. Both show up in the Effects and Options screen of the character window.

Icon	Item	How to get it
	Ability Crystal	Dropped only by monsters in hunting grounds of the Burning Kethotum tier or higher. Each character can get 1 normal and 4 bound crystals per day.
	Ability Upgrade Stone	Needed to level up cards. Crafted from Ability Crystals or received by salvaging cards.

Hunting grounds that drop Ability Crystals: Burning Kethotum, Kanturu Underground Facility, Ignis Volcano, Gore Tarkan and Tormenta Island.

The trees and cores open from buttons at the top of the character window as you advance: the Master Skill Tree at the 3rd class, the Skill Enhancement Tree at the 4th and the Ability Upgrade Core at the 5th (shortcut Ctrl + J). The core has four kinds of slots:

• A [Skill] card only works for a skill you upgraded in the skill tree, for example Meteor Storm of Gale needs the Meteor Storm upgrade skill. The same [Skill] card may sit in all 3 slots: its Skillpower stacks, but its extra effects and options do not.
• [Option] cards boost your stats whether or not you have [Skill] cards equipped. An [Elite] card must be the same level as the lowest-level [Option] card in the slots before it.

All cards are crafted at the Chaos Goblin in Noria (180, 103), and every recipe succeeds 100% of the time. [Option] cards let you pick the type (1–5) but get a random color; [Elite] cards let you pick the color; [Skill] cards depend on your class.

Every [Skill] card also gets one random extra option: HP, MP or AG increase. [Option] cards of each type offer things like stat increases, element attack and defense, Skillpower and Nuke/Bolt/Wide bonuses; [Elite] cards add chance-based options such as Double or Triple DMG chance.

• The Ability Card Book shows the cards you own and the ones you can still get for your class. Drag a card from it onto a core slot to equip it, use filters to narrow the view, or switch to a list view. Clicking an empty core slot also lists the cards that fit there.
• Right-click an owned card to level it up or salvage it. Duplicates plus Ability Upgrade Stones raise a card's level, up to level 5.
• Salvaging a duplicate gives Ability Upgrade Stones: 10 for a [Skill] card, 5 for an [Elite] card and 1 for an [Option] card. The very first copy of a card cannot be salvaged.
• Classes with two build directions can convert one [Skill] card into the other (for example a Magic Gladiator's Chaos Blade of Fire into Havok Spear of Fury). It costs 1 Ability Crystal and 1,000,000 Zen per card, bound crystals are used first, and the random HP/MP/AG option stays the same.