Cards in hand : Oviraptor + Lost world + UCT/Foolish burrial (Turn 1)
1. Activate Lost world
2. Normal summon Oviraptor
3. Oviraptor effect, foolish Giant rex/search UCT
4. Lost world effect, special summon token on opponent field
4a. Foolish burrial Giant rex if you searched UCT
5. Oviraptor effect, target token, destroy Petiteranodon from deck instead, using Lost world effect
6. Petiteranodon effect, special summon Pankratops
7. Bannish Giant rex + Petiteranodon to special summon UCT
8. Special summon Giant rex using his effect
9. XYZ4 using Giant rex + Oviraptor