Based on the normal cards alone allows you to go into Beelze, Stardust Spark, or whatever other Level 8 Synchro you need
Trueman then activates "Dragon's Mirror" to remove from play the five Dragon-type monsters in his Graveyard and Fusion Summon "Five-Headed Dragon" (5000/5000) in Attack Position
If this card is targeted by the effect of De-Fusion, the activated effect becomes Shuffle the target into the Deck, and if you do, gain LP equal to the ATK it had on the field, then you can Special Summon 1 The Winged Dragon of Ra from your Deck. Cannot be destroyed by battle and you take no battle damage from battles involving this card
Also, Jeweled Lotus speculators were undoubtedly disappointed as the designers and CFP didn't unban this card
The exile effect will gain you life, helping you to stay alive to have the time to use the activated ability, which is pretty powerful