Konami of America has been cagey about its actual effects, but we know from the artwork that it involves mad scientists turning into Dinosaurs, ala Sauron/Stegron from Marvel Comics
You can often read into their hand if they are holding up counterspells for Shiko
Battle Angels of Tyr Battle Angels of Tyr has a lot of text on it, but the important part about its ability is the clause that gets you a Treasure token if your opponents control more lands than you once they receive combat damage from this creature

Arcanine ex CG Full Art Card - Genetic Apex Palworld Walkthrough & Guides Wiki Genshin Impact Walkthrough & Guides Wiki Zenless Zone Zero Walkthrough & Guides Wiki Honkai: Star Rail Walkthrough & Guides Wiki Digimon Story: Time Stranger Walkthrough & Guides Wiki Wuthering Waves Walkthrough & Guides Wiki Umamusume: Pretty Derby Walkthrough & Guides Wiki Granblue Fantasy: Relink - Endless Ragnarok Walkthrough & Guides Wiki Arknights: Endfield Walkthrough & Guides Wiki Pokemon Champions Walkthrough & Guides Wiki Elden Ring Shadow of the Erdtree Walkthrough & Guides Wiki Fire Emblem Heroes (FEH) Walkthrough & Guides Wiki Pokemon Brilliant Diamond and Shining Pearl (BDSP) Walkthrough & Guides Wiki Diablo 4: Lord of Hatred Walkthrough & Guides Wiki Super Smash Bros
If youre in blue, chances are that you want to take some counter spells
Sealed Pokmon products like ETBs, Booster Boxes, and Premium Collections often appreciate in value