booster pack pokemon first edition Base Set French 1st Box – Blazing Cards Fossil was only printed for a short period of time and is considered the scarcest of all the American Pokemon sets. Pokemon Base Set Booster Box

The math: at roughly 1 in 1,260 packs for a Mega Hyper Rare, you are opening more than 30 booster boxes, on average, to hit any single gold card, and which one you get is random

Throw in the ability to bring Boo back if your opponent is cruel enough to remove him, on the planeswalker form at least, and you have a token thats good enough to see use in Legacy

It's better to spend that mana on creatures instead

Win conditions include storming off with Mind's Desire/Brain Freeze, generating infinite turns via Mind Over Matter + Narset, or using Jace, Wielder of Mysteries with library depletion

If you can't put +1/+1 counters on the creature for any reason as an endure ability resolves (for example, if the creature is no longer on the battlefield), you'll just create a Spirit token