Try to use armed dragon as engine to summon big synchros:
Start with the windwitches, best case with windwitch icebell -> do standard windwitch combos, but safe the lvl 1 tuner for the Armed dragon part.
Normal summon a armed dragon, then tag out into the lv 5 and go for a 6 synchro, or go for the lv 7 dragon and make a lvl 8 synchro.