Cadu, Tomb Guardian

Upgrades[]

Upgrade	Unlocks	Effect	Description	Cost
Seal of Wakening	Lvl 58000	Increases Ceus, Tomb Guardian's DPS by 1e1000%.	The rod housed within the tomb is said to wake the slumbering.	8.000e25502
The Day Watch	Lvl 180000	Increases Ceus, Tomb Guardian's DPS by 1e2300%.	Cadu guards the tomb under the bright veil of sunlight.	8.000e25502
Twin Snakes (Cadu)	Lvl 326000	Increases Ceus, Tomb Guardian's DPS by 1e2700%.	The pharaoh enshrined within the tomb believed that, just as a snake is renewed through the shedding of its skin, he would someday be reborn into this world.	8.000e25502
The Sunspear	Lvl 495000	Increases Ceus, Tomb Guardian's DPS by 1e3100%.	"There cannot exist shadows without light."	8.000e25502

All of Cadu's upgrades are for his brother, Ceus, Tomb Guardian. Being the elder, his upgrades come at a lower level and has lower effects than his brother's respective upgrades.
Heroes tend to have a lower DPS/ Gold ratio at base (a.k.a. "efficiency") the stronger they get. However, Cadu and Ceus have a higher efficiency than any other hero before them, making them incredibly useful. Although at this stage of the game, the scaling of the monsters health make it difficult for the twin brothers to do decent damage, progressing a few thousand zones each ascension.
He is one of the only 3 heroes to give a DPS bonus to another specific hero, with the other Ceus, Tomb Guardian and Wepwawet.
From Cadu, Tomb Guardian onwards, heroes tend to have a lower DPS/ Gold ratio.

The caduceus is the staff carried by Hermes in Greek mythology.
With all upgrades, he is slightly better than Ceus, Tomb Guardian.
Cadu's dps with all upgrades by Ceus at level 495K without boost and gild is 1.564e50171.
To compare with Ceus' dps, Cadu is actually slightly (not really) better than Ceus, which his dps is 1.658e52601 compared with Ceus' 1.221e50901 at level 588K, which is about 1e1500 dps difference!
The meaning of Cadu's upgrade description is actually the opposite of Ceus' upgrade description.

Heroes