Dark Magician

You only need 2 Dark Magician, if you want to build a house... play 3.

Play 3 Red-Eyes Fusion, those 3 are not bricks! You can use 1 copy to summon Dragoon and the other 2 as discard fodder for Dragoon negate or Magicians' Souls. Some players only play 1 copy, and if their 1 and only copy got negated... then what?

 

1 card leads to Dragoon:

If you meet the condition, you can activate Sky Striker Mobilize - Engage! then search for Sky Striker Mecha - Hornet Drones, activate it to summon 1 Sky Striker Ace Token, tribute that token for Sky Striker Ace - Kagari, using her effect, target Sky Striker Mecha - Hornet Drones from your GY and add it back to your hand. Now use Sky Striker Ace - Kagari as a material to summon Sky Striker Ace - Kaina (you need her link marker), again activate Hornet Drones to summon 1 Sky Striker Ace Token (you will gain 100LP). Use the token as a material to summon Link Spider. At this point, your opponent still thinks you're using a Sky Striker Deck. Now surprise your opponent by sacrificing Kaina and Link Spider to summon the Predaplant Verte Anaconda then summon Red-Eyes Dark Dragoon.

(You can also start by just Sky Striker Mecha - Hornet Drones)

You can chain link Sky Striker Mecha - Eagle Booster to protect your Anaconda from Effect Veiler or Infinite Impermanence. You can also use it as a Discard Fodder for Dragoon or Magicians' Souls.