Looks like this needs some new additions from whatever was added in my four years away from working on the game. I'll try to track down what's been added and then keep it updated in future.

This thread has now been updated with all new sleeves. Let me know if you've seen one not mentioned here!

If you're wondering whether a sleeve exists and how to get it, this thread is for you.

Due to popular demand for more items to spend Shadow Crystals on, more sleeves will be added in the near...

OTHERS

- Corrupted Angel (back001)
- "Blazing Tiger" (back909) *Limited Time Online Store Exclusive* (first seen Oct 2015) - this has no matching playmat
- "Epic Black" (back910) *Limited Time...

LOST LANDS

LL Human Allies:
- ll004 Unaxio Bannerman (back931) *LL Explorer Exclusive*
- ll005 Sabreen (back932) *LL Explorer Exclusive*
- ll006 General of Unaxio (back071)
- ll009 Twilight...

SHATTERED FATES

SF Heroes:
- NONE

SF Human Allies:
- sf015 Zailen Crusader (back051)
- sf016 Guardian of Unaxio (back130) *SF Booster Box 2018*
- sf019 Knight of Unaxio (back098) *SF...

DARK PROPHECIES

DP Heroes:
- NONE

DP Human Allies:
- ex001 Twilight Herald (back036)
- ex003 Mystic of the Vale (back123) *DP Booster Box 2018*
- ex005 Braxnorian Soldier (back124) *DP...

CALL OF THE CRYSTALS

CotC Heroes:
- se020 Zaladar (back002) *Physical Preorder Exclusive*

CotC Human Allies:
- se021 Jasmine Rosecult (back003)
- se029 Erika Shadowhunter (back116) *CotC...