Have a Max Battle Hall

It also provides your whole coalition with a 10% boost army attack. 

Lv 1 battle hall = 1 war tomes

Lv 2 battle hall = 2 war tomes

Lv 3 battle hall = 5 war tomes

Lv 4 battle hall = 12 war tomes

Lv 5 battle hall = 20 war tomes

Lv 6 battle hall = 30 war tomes

Lv 7 battle hall = 45 war tomes

Lv 8 battle hall = 60 war tomes

Lv 9 battle hall = 85 war tomes

Lv 10 battle hall = 100 war tomes

Lv 11 battle hall = 120 war tomes

Lv 12 battle hall = 150 war tomes

Lv 13 battle hall = 180 war tomes

Lv 14 battle hall = 250 war tomes

Lv 15 battle hall = 340 war tomes

Lv 16 battle hall = 500 war tomes

Lv 17 battle hall = 700 war tomes

Lv 18 battle hall = 900 war tomes

Lv 19 battle hall = 1200 war tomes

Lv 20 battle hall = 1500 war tomes

Lv 21 battle hall = 1800 war tomes

Lv 22 battle hall = 2100 war tomes

Lv 23 battle hall = 2400 war tomes

Lv 24 battle hall = 3000 war tomes

Lv 25 battle hall = 4500 war tomes

Have a Max Altar

Lv 1 altar = 1 soul crystals

Lv 2 altar = 2 soul crystals

Lv 3 altar = 5 soul crystals

Lv 4 altar = 12 soul crystals

Lv 5 altar = 20 soul crystals

Lv 6 altar = 30 soul crystals

Lv 7 altar = 45 soul crystals

Lv 8 altar = 60 soul crystals

Lv 9 altar = 85 soul crystals

Lv 10 altar = 100 soul crystals

Lv 11 altar = 120 soul crystals

Lv 12 altar = 150 soul crystals

Lv 13 altar = 180 soul crystals

Lv 14 altar = 250 soul crystals

Lv 15 altar = 340 soul crystals

Lv 16 altar = 500 soul crystals

Lv 17 altar = 700 soul crystals

Lv 18 altar = 900 soul crystals

Lv 19 altar = 1200 soul crystals

Lv 20 altar = 1500 soul crystals

Lv 21 altar = 1800 soul crystals

Lv 22 altar = 2100 soul crystals

Lv 23 altar = 2400 soul crystals

Lv 24 altar = 3000 soul crystals

Lv 25 altar = 4500 soul crystals

Have a Max Prison

It also provides extra attack boost if you have leaders in prison

Lv 1 prison = 1 steel cuffs

Lv 2 prison = 2 steel cuffs

Lv 3 prison = 5 steel cuffs

Lv 4 prison = 12 steel cuffs

Lv 5 prison = 20 steel cuffs

Lv 6 prison = 30 steel cuffs

Lv 7 prison = 45 steel cuffs

Lv 8 prison = 60 steel cuffs

Lv 9 prison = 85 steel cuffs

Lv 10 prison = 100 steel cuffs

Lv 11 prison = 120 steel cuffs

Lv 12 prison = 150 steel cuffs

Lv 13 prison = 180 steel cuffs  

Lv 14 prison = 250 steel cuffs

Lv 15 prison = 340 steel cuffs

Lv 16 prison = 500 steel cuffs

Lv 17 prison = 700 steel cuffs

Lv 18 prison = 900 steel cuffs

Lv 19 prison = 1200 steel cuffs

Lv 20 prison = 1500 steel cuffs

Lv 21 prison = 1800 steel cuffs

Lv 22 prison = 2100 steel cuffs

Lv 23 prison = 2400 steel cuffs

Lv 24 prison = 3000 steel cuffs

Lv 25 prison = 4500 steel cuffs