How to unlock golden mom fluck (felicitoad) hp?

I defeat felicitoad at hard mode with party but didnt know what trigger it lock and unlock its hp. Here is the bowgun drop.

 

did you kill golden iconos first?

 

this boss is so anti melee

the staff

 

no... they related? I mean defeat golden iconos then it unlock felicitoad hp?

 

wow what the staff stat?

 

same stat magic attack variant 300 mp or was it 500mp. I forgot to SS

 

I using magic burst as 3 second finale is too long and it lock its hp again... Edit : It took the whole party 22 minutes to kill it in hard mode.

 

chk out demonic quaser the new side quest boss

 

I did, full of freaking spike. aso really love spike geez

 

its xtal is a mom fluck and ifrid killer

 

yes, I can see sell mom fluck 500k lmao

 

xtall stats also how to unlock hp?

 

it seems if the aggro holder reapeatdly goes under the frog unlocks the hp, I think

 

the stats for that staff ? and the staff name ?

 

golden rod, stats are meh it has 206 base watk

 

same as BG, Attack, Additional Melee and Hp is replaced with Magic Attack, Additional Magic and 300mp

 

the aggro holder must be super close range to trigger unlock

 

that's nuts as he has absolute knock back and the spikes takes forever

The boss is messed up.

 

Good job asobima took my 45min. Hate you

In short. The boss jump backward twice after the aggro holder go close to it(1 trigger). Each jump come with 1 Attack.

Boss will use total 6[*1] shark waves after aggro holder go nearby three times(3 triggers).

After 6[*1] shark waves, when aggro holder go nearby (4th trigger), the hp will unlock. (aggro holder better take some time here wait everyone to be ready)

There will be hp unlock time (approximate) 5 to 10 second[*2] (which is the time boss going back to the center). Then hp lock agian, it will spawn spike to all member and start another Attack mode when triggered.

[*1]Attack mode: center shark wave (6waves in 3triggers), meteor(6 area in 3 triggers) , sideway shark wave (4 waves in 2 triggers)

[*2] in party, the boss tend to teleport (connection problem/bug maybe). So it didnt go back to the center for most of the time.
However, in solo mode, the hp lock is only when the boss back to center.

Advice:
1)Not good idea to push the boss to the side of map (if in party. See [*2]). Direction of pushing the boss isnt matter.
2)member (attacker) try not standing too far from each other. Otherwise the spike area will be too much.