Well  I  suppose  in  the truest form  an  Assassin  works  alone  and  not  in  a team  (Turtles  are  a team)

So  being  that  there  is  no  survivability  (think  revive/heal) in  forcing  them to  work  together as  a team  that  leads  to  the question  of  do  you really  need  to collect  them  all ?

I will  go  for  the fusion as  I said for  no  other reason than  to have  the first champion  of  the  new  faction coming and  all  numbers  say  she  is actually  the BEST  champion  in  Argonites   :P

But  seriousely  after  the fusion  and  the 7 day  login  ....not  sure  I will  go  for  anything  else

Exception  is  the  event  dungeon  boss even though  he will be able to get after  with  shards  if  I can  guarantee  get  him  like  Odin  or something  then  I  may think  twice