The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Abilities (2 members)
- Ability (4 members)
- Arena screenshots (13 members)
- Arena skin icons (12 members)
- Arenas (17 members)
- Buildings (26 members)
- Candidates for deletion (3 members)
- Candidates for speedy deletion (0 members)
- Card images (76 members)
- Cards (304 members)
- Changelogs (24 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Copyright templates (10 members)
- Daily Challenges (0 members)
- Disambiguations (0 members)
- Documentation templates (50 members)
- Faction: Accursed (37 members)
- Faction: Crystal Elf (30 members)
- Faction: Empyrean (39 members)
- Faction: Outlander (28 members)
- Faction: Puff (1 member)
- Faction: Scrat (35 members)
- Faction: Slither (30 members)
- Faction: Stoutheart (21 members)
- Faction: Voidborne (56 members)
- Faction: Zen-Chi (31 members)
- Formatting templates (25 members)
- Gameplay (1 member)
- Hidden categories (0 members)
- Images (8 members)
- Images needing improvement (0 members)
- Infobox templates (3 members)
- Legal notices (3 members)
- Mana cost: 0 (14 members)
- Mana cost: 1 (19 members)
- Mana cost: 10 (9 members)
- Mana cost: 2 (35 members)
- Mana cost: 3 (74 members)
- Mana cost: 4 (57 members)
- Mana cost: 5 (49 members)
- Mana cost: 6 (23 members)
- Mana cost: 7 (18 members)
- Mana cost: 8 (12 members)
- Mana cost: 9 (6 members)
- Master icons (44 members)
- Master screenshots (9 members)
- Masters (13 members)
- Media (2 members)