Im pretty sure there is no dedicated race for god of destruction form the config should be with Ultra instinct in Jingames/dbc/forms.
And for getting rid of the health is going into Ulra_instinct config and change every level of ui to this.
# Server Sided! Health Requirement (Percentage). (From 0 to 100).
I:”Ultra Instinct Health Requirement”=100
Make sure its 100 then you should be able to transform into ui without being damaged.
Make sure you change the pain to this if you dont want pain enabled.
# Server Sided! Ultra Instinct Was In Pain Requirement(0 = Disable, 1 = Once, 2 = Every time) (Gives a requirement to enter a White Hair level. The player must receive the pain Status effect)
I:”Ultra Instinct Was In Pain Requirement”=0