Viable build for +Hp, -Def Micaiah?

A Slot: Fury 3
B Slot: Renewal 3
C Slot: Drive Atk 2
Support: Sacrifice
Special: Iceberg
Weapon: Thani (Default)

For this build, the Fury 3 is the slight recoil that Renewal 3 can cover up as well as improving her survivability and combat prowess

If needed, she can use her sacrifice on an ally and become a pseudo-healer thanks to Renewal 3

Upon survival and prolonged turns of combat, she can then use her charged iceberg strengthened by her high res in nuking foes

Any thoughts or ideas? If you’ve got something better please let me know! Thanks