The general strategy is to build value by tributing away your opponent's monsters for profit. There is otk potential by using the ogdoadic engine to get out a 13000 ATK Numeron Dragon.
The combo is:
Tribute a monster to bring keurse back from the gym.
Keurse trigger bring back either zoha or nauya.
Activate nunu in gy or get another lv 4 monster out
Xyz summon king of feral imps and activate it searching reptilianne coatl.
Activate coatl to special summon it and tribute it away for Aleirtt.
Xyz summon Draglubion. Activate it to bring out Numeron Dragon and activate Numeron to get it to 13000 ATK.