And oh, one more, you'll definitely want to use the red jewel item that makes you draw 2 cards per turn. You need to get the combo pieces fast since you only have 5 turns.
I hardly use synchro monsters so this is basic but it works for me and i already got hundred eyes dragon.
3 × charging gaia the fierce knight
3 × lancer arch fiend so synchro monster can pierce
3 × level 4 non tuner monsters with high attack and even better if they pierce
4 × level 3 tuners
3 × level 1 tuners. I recommend changer synchron so you can change the face down infernity mirage to attack
2 × power of the guardians
2 × wall of distruption
1 × powerful rebirth
1 × windstorm of etaqua
Extra deck
2 × level 7 synchro monsters i use scrap archfiend and lightning warrior
1 × level 5 synchro i use goyo chaser
Plus i through in a random giganticastle
Skill - mark of the dragon