![Fossil Dyna Pachycephalo (Secret Rare) [SGX4-END02] Secret Rare](http://mediareload.net/cdn/shop/files/ygo_placeholder_e5d92aa5-5aca-49b8-a521-124ad1109287_1024x1024.png?v=1711747315)
![Fossil Dyna Pachycephalo (Secret Rare) [SGX4-END02] Secret Rare](http://mediareload.net/cdn/shop/files/ygo_placeholder_e5d92aa5-5aca-49b8-a521-124ad1109287_480x480.png?v=1711747315)
| Set: | Speed Duel GX: Midterm Destruction |
| Card type: | Effect Monster |
| Rarity: | Secret Rare |
| Attack: | 1200 |
| Defense: | 1300 |
If this card is flipped face-up: Destroy all Special Summoned monsters on the field. Neither player can Special Summon monsters.