how to beat king frost at fairy forest, yoyogi sector

1st of all  you should have the blue warclothes[ice resist] which can be bought in kinshicho underground districtand get the demon DRAGON MAKARA which has ice resist and FEMME MERMAID and if you really want to kill that demon, you could also make Asparas which also has ice resist

To get dragon makara you should have

Moh shuvuu
+
Chagrin

just fuse both and you will get dragon makara, both moh shuvuu and chagrin can be obtained in fairy forest

To get femme mermaid you should have

Spriggan
+
Bilwis

just fuse both and you will get femme mermaid, both can be obtained in fairy forest

To get Asparas you should have

Moh shuvuu
+
femme mermaid

just fuse both and you will get Asparas, both  can be obtained in fairy forest

you should also get Hua Po because she has AGI skill which is fire magic

King frost Weakness - fire
and in your main character try to learn fire magic too by leveling hua po and learning fire magic from her

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