Where is it
This is an old feature you wont see on modern cards nowadays, its simply called an ability
Here is a sample (solo) deck : arkhamdb.com A couple useful tricks: --With Luke Robinson as lead investigator, he can use a Gate Box charge (in the enemy phase, after Dream-Gate's end-of-investigation effect would've passed) to discard a nasty enemy seen with Alyssa --Peril only applies while resolving an encounter card, so when you see a peril you can confer openly to pre-decide on peril choices without detracting from gameflow the way that trying to pre-decide normally does In solo play her ability to foresee the future for relatively cheap makes her damningly powerful
Friendship is, once again, Magic the Gathering
Furthermore, the condition of the card plays a huge role in determining its value
R Rare True King Agnimazud, the Vanisher X FIRE Level 9 [ WyrmEffect ] ATK 2900 DEF 1900 If this card is in your hand: You can destroy 2 other monsters in your hand and/or face-up field, including a FIRE monster, and if you do, Special Summon this card, and if you do that, you can banish 1 monster from your opponent's field or GY, if both the destroyed monsters were FIRE