What each type is for (support, offensive and amplifier), creating at the Altar, bond and Ascension Stars, branches and what the spirit does in battle.
How stamina paces the game and how to recover HP, MP and stamina faster.
Equipment slots, what rarity changes and how refining works at the Forge.
What each attribute does, the XP cost per level and how to spend your points.
How to unlock skills, equip the active ones and how long buffs last.