Soulstones

Soulstones are a type of hero equipment and individual to each hero. You get soulstones from celestial chests which are obtained by performing rituals in the Oracle. Soulstones unlock at character level 200.

Tiers

There are 2 tiers of soulstones. While tier 1 is immediately available once you get a new hero, tier 2 has to be unlocked first.

Tier	Soulstones	Unlock cost	Requirement
1	Focus, Stamina, Courage
2	Wisdom, Faith, Charisma	1000 strange dust	10,800 soulstone power and oracle level 11

Bonuses

Soulstones give the following bonuses:

Soulstone		Bonus
	Focus	Increase the damage of this hero
	Stamina	Increase the health of this hero
	Courage	Increase the armour of this hero
	Wisdom	Increase your gold earnings (raining gold)
	Faith	Increase your firestone gain (prestigious)
	Charisma	Increase all main attributes on all heroes

Rarities

There are 7 rarities. Each rarity approximately triples the effect of the soulstone and allows you to enchant the soulstone two more times.

Rarity	Max level	Requirement
Common	2
Uncommon	4
Rare	6
Epic	8
Legendary	10	Legendary seal and level 6*
Mythic	12	Mythic seal and level 9*
Titan	14	Titan seal and level 11
Angel	16	Angel seal and level 13

* galaxy chests and stellar chests can also directly drop new legendary or mythic soulstones which then have level 0

Enchanting

When you enchant an item, it is actually the slot that you enchant. So whenever you get a better item, the enchantment level will carry over to the newly improved item. The cost doubles with every enchantment level until level 8. After that the cost will go up by 50% per level until level 12. For levels 13 and 14 the cost doubles again.

For levels 2-8: cost = 30 * 2^{current level} * 4^(tier-1)

For levels 9-12: cost = 3840 * 1.5^{(current level - 7)} * 4^(tier-1)

For levels 13-14: cost = 19460 * 2^{(current level - 11)} * 4^(tier-1)

Upgrade	Tier 1	Tier 2
0 → 1	30	120
1 → 2	60	240
2 → 3	120	480
3 → 4	240	960
4 → 5	480	1,920
5 → 6	960	3,840
6 → 7	1,920	7,680
7 → 8	3,840	15,360
8 → 9	5,760	23,040
9 → 10	8,640	34,560
10 → 11	12,960	51,840
11 → 12	19,440	77,760
12 → 13	38,880	155,520
13 → 14	77,760	311,040
14 → 15	116,640	466,560
15 → 16	174,960	699,840

Effect

The effect of a soulstone roughly triples with its rarity and roughly doubles with its enchanting level. The exact rarity multipliers are:

Rarity	Tier 1	Wisdom	Faith	Charisma
Common	4	2.5	2	8.5
Uncommon	10	5.5	4	23.5
Rare	28	15	10	68.5
Epic	88	42	28	203.5
Legendary	244	123	82	608.5
Mythic	730	366	244	1823.5
Titan	2188	1095	730	5468.5
Angel	6562	3282	2188	16403.5

The exact enchantment level multipliers are:

Level	1	2	3	4	5	6	7	8
Multiplier	2	4	8	15	30	60	120	250
Level	9	10	11	12	13	14	15	16
Multiplier	500	1000	2000	4000	8000	16000	32000	64000

With these multipliers, the effect of a soulstone is:

effect = (rarity multiplier * level multiplier - 1) * 100%

Power

The soulstone power of a hero is given by 100 plus the sum of the power ratings of the hero's soulstones. The base power of a tier 1/2 soulstone is 100/250. The power of a soulstone doubles with every level increase and triples with every rarity increase:

soulstone power = base power * 2^level * 3^{(rarity - 1)}

Duplicates

When you open a celestial chest, you draw either a new soulstone, a rarity upgrade or a duplicate. When you draw a duplicate soulstone, you will get soul shards instead which in turn allows you to enchant soulstones. The amount of soul shards you get depends on the rarity and tier of the soulstone. A common tier 1 soulstone gives 10 soul shards. You get 3 times as many shards with every rarity higher and 2 times as many shards for every tier higher.

value = 10 * 2^{(tier - 1)} * 3^{(rarity - 1)}

Rarity	Tier 1	Tier 2
Common	10	20
Uncommon	30	60
Rare	90	180
Epic	270	540
...	...	...