Sample Extension (Thunder Dragondark):
Note: Do not use the hand effect of Thunder Dragondark so you can activate its banished effect
- Find a way to put Thunder Dragondark in GY (can be done with discard cost of Dragon Ravine or Chaos Space or Chaos Ruler mill)
- Banish Thunder Dragondark using Bystial monsters' special summon effect
- activate Thunder Dragondark's banished effect and grab Thunder Dragonhawk
- activate Thunder Dragonhawk from hand to special summon any "Thunder Dragon" monster in GY or banished
- special summon Thunder Dragon Collosus
End Board: Standard Bystial Dragon Link + Thunder Dragon Collosus