Main Story/Sea of Ice

Minimum level: 44
Story: Tatum the barbarian hero saved them from Erathia's chains. Now he has formed an alliance with his former owner.
Chest rewards:
* 15 Stars - 50, 10 30K, 3000
* 30 Stars - 50, 15 50K, 5000
* 45 Stars - 500, 20, 80K, 8000
=Side Quests=
* Pile of Supplies: 5x, 10x, 10x
* Pile of Gold: 50K, 50K, 50K
* Centaur Stables: 5x Centaur tokens
* Barracks: 5x Cavalier tokens
* Monastery: 5x Monk tokens
* Surrounded Pikeman: 10x Pikemen tokens
* Surrounded Wight: 5x 
* Bone Dragon: 1, 4x 
* Mage's Chest: 40 30
* Magic Shrine: 20 OR 1
Map completion reward: 300, 5x Orc tokens, 10x
==Hidden Chest==
=Library of Wisdom=
I'm having difficulties myself and cannot offer you more help. Ca-can you help me?
After clearing Stage 12-13, Library of Wisdom is revealed. Winning the challenge has 4 grades, each with a Hero stat bonus:
*C grade - 📚 Hero Intelligence +2
*B grade - 📚 Hero Intelligence +2
*A grade - 📚 Hero Intelligence +3
*S grade - 📚 Hero Intelligence +3
For the total of 📚 Hero Intelligence +10, you need to finish the challange in under 60s, without losing any unit and with over 70% HP left.
=Stages=
Each stage win rewards an additional , to their respective materials.
==Stage 12-1==
==Stage 12-2==
==Stage 12-3==
==Stage 12-4==
==Stage 12-5 🏰==
==Stage 12-6==
==Stage 12-7==
==Stage 12-8==
==Stage 12-9==
==Stage 12-10 🏰==
==Stage 12-11==
==Stage 12-12==
==Stage 12-13==
==Stage 12-14==
==Stage 12-15 🏰==