I am wondering because I got this offer and I kinda want to play phantom.... but it will take away like 110%boss attack and some %pdr....

my dagger is 210atk(5enhances) 20%'ed 5times(7atks) and gm'ed 5times. 60%boss 35%pdr LEGENDARY 3L. 21%pdr neb.
my katara is 115atk(1enhance). 50%boss 6%atk. 18%pdr neb. Unique 3L

the cane i was offered is 185atk(1enhance). 21%total dmg. Unique 3L. idk about neb.
the card i was offered is 3L unique, dont remember the potential but i believe it wasnt great.
and max mesos...

hm......... ill be losing lots of %boss and %pdr for sure.... and some dmg... hmmmmmmmmmmmmmmmmmmmmmmm

I think im losing quite a lot of money... idk.... any suggestions?