Hello guys !
Really easy cheevo,simply follow my video and you'll beat Jera without problems at all.
Strategy:- Simply check where i stay and do the same.In this position you're untouchable from the fists attack of Jera.If you quick she will only use this attack during the (short) fight.
- Use the combo Freya + Thor to make massive damages to Jera.After 5-6 hits,use the combo again.
- You can,like me,throw a Odin's spear for the final shot but it's not very useful.I don't think the boss can hurt you at the end :P
If you follow my video perfectly you'll gain the other achievements too:
It's the easiest of the six boss battles so it doesn't be so difficult.
Good luck guys and don't hesitate to comment my guide if you have some problems with the game ^^