There are a few important things that come into play: The set and card number (located at the bottom right of the card) The rarity (common, rare, holo, secret rare, etc.) The condition (Near Mint, Light Play, Damaged) Is the card graded
Given the critiques Destined Rivals has received about its card designs, especially following something as gorgeous as Prismatic Evolutions , the primary reason for cards reaching significant value is likely due to the popular trainers featured in this set
The An-Zerrins have served me well, ever since I first killed them. Baron Sengir Illustrated by Dennis Detwiller Part of the Reserved List Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
Sacrifice after III.) I, II Put a +1/+1 counter on up to one target creature