hey! first deck i ever built not meta but still fun to play!
the boss monster is the Cyberdark End Dragon
to summon it you first need to send Cyber End Dragon to the GY with Cybernetic Horizon (only playing 2 because you only need 1 but a second in case the effect is negated), the best is to send Cyber Dragon Herz (to add Cyber Dragon from the deck or a cyber dragon in the graveyard to your hand) and one cyberdark monster to the GY and then add one of them from your deck to your hand. You can also summon -cyber
like that you will have 1 cyberdark monster in your hand and one in your GY that you can use to fusion with the effect of Cyberdark Chimera ,this card allows you to discard one spell/trap to add Power Bond from your deck to your hand, you'll also be able to use any monster in the GY to fusion Cyberdarkness Dragon or Cyberdark Dragon (like the one you send to GY with Cybernetic Horizon or the effect of Cyberdark Cannon and Cyberdark Claw ).
to summon Cyberdark Dragon you need the 3 main cyberdark monster that you can add with Cyberdark Cannon or Cyberdark Realm that also allows you to norm summon one cyberdark monster. Before summoning Cyberdark Dragon make sure that Cyber End Dragon isalready summoned.
You can also summon Cyberdarkness Dragon with 5 cyberdark monster (don't need to care of which ones).
With the effect of Cyberdarkness Dragon you can equip Cyber End Dragon (in the GY) then tribute Cyberdarkness Dragon to summon the boss monster
Cyberdark End Dragon ,this card is unaffected by any of your opponents effect and can equip 1 monster from your GY per turn, each monster will add one attack. The best is to equip Dragon Buster Destruction Sword that will block the opponent's extra deck you can first send it to the GY with the effect of Cyberdark Cannon , that's crazy strong but it's really hard to setup especially if your opponnents have negate combos cards. You can try to protect the combo with Infinite Impermanence.
Cyberdark Invasion can equip one more card to Cyberdark End Dragon and add 1000ATK for each card equipped or unequip one card to destroy 1 card your opponent controls. It's usefull to add some attack to finish the round or destroy some annoying cards.
obviously Ash Blossom & Joyous Spring and Infinite Impermanence are a must in almost every deck i don't think i need to explain why they are here.
basics cyber dragon cards are also here to support like Chimeratech Rampage Dragon who can destroy spell/trap cards when summoned or Cyber Dragon Infinity (very good) to negate any card effect or use your opponent attack positionned monster as XYZ material. Cyber Dragon Sieger can protect one of your 2100ATK or + machine monster you can also useit to protect yourself if you don't have anything first turn. Cyber Dragon Nova can be used to summon Cyber Dragon Infinity or when destroyed, Cyber End Dragon .
Cyber Eternal can be used if you need to get back a fusion cyber dragon monster from your GY in some case it will help you but most of the time it's useless.
The side deck is classic
you can use Dimension Shifter and still fusion with Cyberload Fusion idk in which situation but it can be used.
let me know if you have some suggestions to improve the deck i'll be very happy to get some feedbacks!
That's all for this cyberdark deck i hope you enjoyed this, it's the first deck i ever "built" tyvm for reading this!