construction: 5/10
Ability to cope with a variety of decks: 6/10
Consistency: 5/10
I would give it a score of 16/30
Magic Jammer does not belong in this deck and does not give you any pluses from the discard if you were hoping it did as it is a cost of activation. I think 3 Beige is a bit too much and you should replace a Beige with another Silvaa or a Goldd. This deck does not need dark world lightning and 2 MSTs. Into the Void and Morphing Jar are risky cards and are quite slow in the current meta (morphing jar can just be popped and veilered and into the void is just risky if you are full of other spells and traps).
Improvements:
main deck:
- card left of grapha
- bronn
- beige
- morphing jar
- into the void
- 2 mst (not needed with grapha and lance)
- the forces of darkness
- magic jammer (all of them)
- 2 mirror force
add:
+ 2 silvaa
+1 night assailant (another target for tour or its dead if veilered)
+1 malefic SDD
+ 1 dragged down to the grave
+ 3 forbidden lance
+1 foolish burial
+1 bottomless
+1 deck devistation virus
+1 compulsory evacuation
+/- I would probably put one trance archfiend maybe in place of dark world lightning
Look to add other cards such as dimensional prison or eradicator which are good...you need a bit of everything in your main deck this format and then side heavily g2 dependant on what opponent runs.
Your extra deck looks good, too many rank threes imo, need a couple more 4s for example lavalval chain would be good and add a rank 8 too.
Your side deck needs a little work skill drain and royal decree maxed out, I would take prohabitions out and put a system down in, gozen match should also be maxxed out.
Hope this helps