There are 2 main strategies.
1. Summon Parlor/Kitchen Dragonmaid, pitching their bigger counterpart. Summon Lady's Dragonmaid, then special summon Chamber. Search Hospitality. Link summon Spirit with Eyes of Blue using Chamber, then add mausoleum. Play mausoleum. Summon Sage, search either maiden or master, depending on what is in your hand. Use maiden's effect to play true light. Use true light to set Wishes/Roar. Play wishes to get effect veiler and ultimate fusion. Use Mausoleum to pitch a blue-eyes. Spirit's effect to SS blue-eyes, SS maiden. Raor to SS Jet. Wishes to equip neo blue-eyes/BEUD. Synchro into 2 BE spirit dragon. SS crimson dragon and blue-eyes ultimate spirit dragon. SS stardust sifr divine dragon.
2. preparation of rites to add illusion of chaos. Illusion to add magicians' souls, putting illusion back in the deck. Pitch Illusion to SS magicians' souls. Link for Spirit with eyes of blue. Add Mausoleum. Summon Sage, search maiden. Maiden eff to play True light. True light to find wishes. Wishes to get ultimate fusion and master. Mausoleum eff to pitch BEWD. Spirit eff to SS BEWD. SS maiden. Wishes GY eff to equip BEWD with BEUD. Tune Sage and BEWD to summon Blue-Eyes Spirit dragon. 2nd normal summon Master, adding Sage from the GY. Sage eff targeting maiden (cl1), Maiden eff (cl2) maiden summons back Sage, sage summons BEJetD. BEjetD+sage to summon BEspiritD. Ultimate fusion to summon Magia using BEUD and Illusion of Chaos in the GY. Both spirit eff to summon crimson dragon and BEUspiritD. Crison Dragon eff to summon Stardust sifr divine dragon.
If going into these boss monsters fails, use 2 of the level 8 dragons (BEWD/BEJetD/Dragonmaid lorpar/tinkhec) to go into hope harbinger. And if need be, into titanic galaxy. Both are very useful against sky striker decks.