Dragon Quest Monster Joker - Me Vs Solitaire (And A Walkthrough Of How To Make Darkonium Slime)

A Face off Against solitaire

plus a walkthrough of how to make darkonium slime, which is:
You use Quadrilineal Synthesis to make it.
which is you synthesis 2 Beshemoth slime
how to get:
synthesis a she-slime with a Behemoth slime
both found on Uncharted Island (Slime)
then you synthesis the 2 together, it does not matter what monster you get from the 2 beshemoth i will still count in the Quadrilineal Synthesis.

And then you need king cureslime
how to get:
synthesis 2 king slime for King cureslime, but you use a process called Special Synthesis
Note: Special synthesis override generic synthesis patterns
or theres more monsters to make king cureslime, so you dont have to use 2 king slimes

And now you need metal king slime 0_0
make sure you dont use it in another synthesis (if your trying to make another monster, idk)
how to get:
you can get metal king slime by synthesising 4 Liquid metal slime (Quadrilineal Synthesis)

you can try to get it the easy way just collect 100 skills and show them to the lady in monster scout HQ in the commissioner's room (solitaire's room)

or theres also one on Infern Isle, day/night (there is, trust me, its very rare, i killed 4 of them on infern Isle)
and one in the metal Menagerie, you will have to be a good scouter to scout metal king slime
for example:
high attack, also using magic to help raise the attack, like Oomph, or Psyche Up for a good
chance of scouting metal king slime, or metal slime if you wanna do it the long way.
which is to get 4 Liquid metal slime is, synthesising 2 metal slime's (spacial synthesis)

so basically get 8 metal slime's and synthesis all metal slime's together to get 4
Liquid metal slime's

And then synthesis the remaining monster you got by synthesising the 2 Beshemoth slime's
And the synthesis remaining monster from synthesising king cureslime and metal king slime:
synthesis the remaining 2 together to make darkonium slime :)

Note: watch out for the + and - symbol so you do everything right, if you do it wrong you will have to do that monster again, so save your game before you are synthersising monsters, so you can turn it off and turn it on again if you dont get the right (plus + or minus - symbol, so watch out!!