After you do this, use Gae Dearg's effect to bring another "Debris Dragon" to your hand, then summon it to bring the Winged-Beast monster back again to Synchro Summon another Level 6 Dragunity Knight.
You can use this card's effect, then use "De-Synchro" on it and Special Summon the Synchro Materials; then, re-synchro them and bring this monster out again for re-use of its effect. Alternatively, you could Special Summon any other level 6 Synchro Monster.
If you can Synchro Summon this card, use its effect to add "Mist Valley Baby Roc" to your hand, then discard it. Due to "Mist Valley Baby Roc"'s effect, it will be Special Summoned when it is sent from the hand to the Graveyard. Finally, since it is a Level 2 Tuner, use it and the Level 6 "Gae Dearg" to Synchro Summon a Level 8 Synchro Monster.