Killing Goddess Valkyrie is very annoying. Fixed 1 damage and always use Heal.
But worry no more! I'm here to teach you how to kill her. You don't need to have a strong weapon.
First you must have a high ASPD and equip any 4 slot weapon with any of these cards below:
Banaspaty Card = When dealing physical damage there is a chance to cause Burning status.
Snake Card = Poison an enemy when you attack (Success Chance 5%). ATK + 5
Breeze Card = ATK + 5. Add a 5% chance of auto casting Bleeding on the enemy when attacking.
Lord of Death Card = Add a 0.01% chance of auto casting 'Coma' on enemy when attacking.
In my case, I used a weapon with 4 Banaspaty Card
After 3~5 minutes,I killed her
That's it. I hope it helps. See you in NyRO guys