so i am getting ready for ycs and i need help with my flipping side

--Main--
Flamvell Guard x1
Red-Eyes Darkness Metal Dragon x1
Mythic Water Dragon x2
Blaster, Dragon Ruler of Infernos x3
Gorz the Emissary of Darkness x1
Tidal, Dragon Ruler of Waterfalls x3
Tempest, Dragon Ruler of Storms x3
Redox, Dragon Ruler of Boulders x3
Debris Dragon x1
Mythic Tree Dragon x2
Card Trooper x2
Maxx "C" x3
Dragunity Corsesca x1
Effect Veiler x2
Sacred Sword of Seven Stars x3
Terraforming x2
Gold Sarcophagus x1
D.D.R. - Different Dimension Reincarnation x1
Dragon Ravine x3
Raigeki Break x1
Return from the Different Dimension x1
--Extra--
Star Eater x1
Red Dragon Archfiend x1
Crimson Blader x1
Scrap Dragon x1
Stardust Dragon x1
Stardust Spark Dragon x1
Black Rose Dragon x1
Ancient Fairy Dragon x1
Hieratic Sun Dragon Overlord of Heliopolis x1
Divine Dragon Knight Felgrand x2
Number 74: Master of Blades x1
Mecha Phantom Beast Dracossack x2
Number 11: Big Eye x1
--Side--

Which YCS are you attending and can you list cards that you have so we don't suggest stuff that you don't have e.g when can't suggest Quasar if you are European XD.

its the USA ycs and i just need help on the side, cause i cant test this deck they quit before my first turn is done

ok what are you weakest match-ups?  So we know what you need to side more against.  For example if your worst match-up was bujins you would side debunk, skill drain and dna surg

idk i cant get the game to get to turn 3 i ftk them or get them in 2 turns

I love mythic dragons but for YCS and events like that it's better to run regular dragon rulers and I can PM you a deck list and side deck if you're insistent on running mythics

Why is normal dragons better? This deck trashes normal dragons

you're main play is a 2 card combo. while you can play like regular dragons. regular dragons are a bit faster and have better synchro plays which is more decisive then xyz'ing if you cant go into felgrand.

it doesnt feel like a 2 card combo more like a deck combo