If you know Jack and the many tuners that he uses, this deck shouldn't be that hard to use. But before using it, read the combos and more below:
Combos (To get Red Dragon Archfiend on Field):
Red Resonator + Red Sprinter (Red Sprinter + Red Resonator works as well. Just make sure you control no monsters when using Red Sprinter first): Summon Red Resonator, then use it's effect to Special Summon Red Sprinter. Then use both to Synchro Summon Red Rising Dragon. Use Rising Dragon's effect to bring back Red Resonator. Then Synchro Summon again to become Red Dragon Archfiend.
Any Level 2 Resonator + Red Warg: This one is easy. Summon any Level 2 Resonator (Force or Red Resonator), then you should be able to Special Summon Red Warg, which should then lead to Red Dragon Archfiend.
Beyond Red Dragon Archfiend:
Any Level 8 "Red Dragon Archfiend" + Chain Resonator + Any Level 3 Resonator: This deck contains two Level 12 Synchros. One requires the original Red Dragon Archfiend while another doesn't. The steps are the same. With a Level 8 Red Dragon Archfiend Synchro Monster, summon Chain Resonator. Use it's effect to Special Summon a Level 3 Resonator (Clock or Dark). Then with there combined levels, tune them with a Red Dragon Archfiend to create either "Hot Red Dragon Archfiend King Calamity" or if using the original Red Dragon Archfiend, you can go for "Red Nova Dragon".
Red Rising Dragon + 2 Level 2 Resonators (Red or Force): I haven't tried this one, so I don't know if it will work, but you can try. You Synchro Summon Red Rising Dragon using the above method, then instead of going to Level 8, wait until you get another Level 2 Resonator (If it's in the Graveyard, cards like "Red Carpet" and "Resonator Engine" could work). Summon the 2nd Level 2 Resonator and you should get "Tyrant Red Dragon Archfiend".
Red Rising Dragon + 2 Level 2 Resonators (Use 2nd Resonator after Synchro Summon with Red Rising): (Easier version of above) Summon a Level 8 red Dragon Archfiend Monster, then use the 2nd Level 2 Resonator to get "Hot Red Dragon Archfiend Bane".
Any Level 8 Red Dragon Archfiend Synchro Monster + Chain Resonator (Don't need to use Chain's effect): With a Level 8 Red Dragon Archfiend Synchro, summon Chain Tinker and bring out "Hot Red Dragon Archfiend Abyss".
NOTE:
- If you noticed, I used one original Red Dragon Archfiend and used more of Hot. That's because the original's first effect kind of mocks me. How monsters that don't attack are destroyed isn't helpful. This may make summoning Red Nova Dragon hard. You can add two more copies of it if you want, this is just my opinion
- The Continuous Trap "King Scarlet" can also be used with a Level 8 Red Dragon Archfiend Synchro Monster for "Hot Red Dragon Archfiend Abyss"
- I found "Synchro Cracker" to be very useful and fun to use. By sending a Synchro Monster you control to the Extra Deck, you can destroy all monsters your opponent controls that are weaker than the Synchro's ATK. Since a lot of cards in this deck have really high ATK power, you can use it to destroy almost all of your opponent's monsters (Like a King)
- King's Synchro is also a good trap if you want to add
That's all. Enjoy the Deck :)