The stats used in Champions League and Siege depend on the hero's base stats, which are then multiplied according to current rarity. There is no difference in stats in mid-tier rarity, for example, between Legendary (I) and Legendary X, but rather between Epic, Legendary, Mythic, etc. From this point, there are two types of enhancements that can further enhance these stats, equipment sets (★), and gild.
Base Rarity
Leg
Myth
Div
God
Etern
Gal
Legendary
base
x1.4
x1.6
x2.6
x3.4
x5
Each completed set of equipment (+1 ★) is worth +20%. This is a mostly permanent boost, as the only way to remove equipment sets is to Altar the hero without enough shards on hand.
Equipment Sets (★)
(blank)
★
★★
★★★
★★★★
★
★★
★★★
★★★★
Current Stat Multiplier
x1.0
x1.2
x1.4
x1.6
x1.8
x2.0
x2.2
x2.4
x2.6
As for gild, each is worth +0.1% stats, so 1,000 are worth +100% stats. Legendary through Legendary V hold a maximum of 500gild, while Legendary X goes up to 1,750gild. After Legendary X, each increase of rarity will give you +75gild until you reach Galactic X with the max of 5,500gild.
Upgrades[]
Upgrade
Icon
Unlocks
Effect
Description
Cost
Ancient Scarab
Lvl 10
Increases Almmaharret's DPS by 150%.
Artifact of power and authority.
Staff-Key
Lvl 25
Increases Almmaharret's DPS by 150%.
Secret weapon and key to the truth.
Gaze of Almmaharret
Lvl 50
Increases Almmaharret's DPS by 150%.
None shall avoid the gaze of Almmaharret.
Dominating Influence III
Lvl 75
Increases the amount of influence points by 175%.
Who killed Cleopatra?
Power of Fire
Lvl 200
Starting with 200 lvl the hero gets x4 DPS bonus for each 25 lvls.
-
Power of Soul
Lvl 1000
The hero gets x10 DPS bonus for each 1000 lvl.
-
Equipment[]
Every completed set of equipment gives x1,000 multiplier to DPS.