Contessa was created by Brilliand
You can find it here List of Modded COs
Stats
D2D: All units have reduced firepower and defense (90/90)
CO Zone (range 5): The first time one of your units would be destroyed each turn, it takes no damage instead.
Power (1 star): Path to Victory (Your next attack this turn deals an additional 5hp of true damage.)
Super (6 stars): Gambit (All of your attacks deal an additional 5hp of true damage.)