Here is the full list of all 20 God Mode trophies - there are 19 bronze and 1 silver.
Purchase all upgrades
Reach the final level and attain God Mode
Grind 50 creatures using the Buzzsaw melee attack
Kill 20 creatures using the Hammer ability
Enrage 10 Cyclops
Destroy 50 scarab eggs before they hatch
Kill 2500 creatures
Decapitate 100 Skeletons
Complete all maps on hardest difficulty
Trigger 20 Mage seals
Finish any map with 6 active Oaths on hardest difficulty
Survive the "Death" Test of Faith
Fully upgrade one weapon
Kill 50 enemies using melee
Finish any map with 3 or more active Oaths
Purchase your first weapon upgrade
Kill 100 creatures
Finish any map on any difficulty
Complete any map without dying
Complete your first Oath