how can you tell a pokemon card is rare to if Your Real vs Fake: How to

By completely removing every players ability to produce mana outside of mana rocks, treasure etc

But if you have to use Krokorok in the active Pokemon spot, I would recommend using Mud-Slap every turn unless you know you can evolve Krokorok into Krookodile shortly, before Krokorok gets knocked out, then I would put four energy cards on Krokorok and use Corkscrew Punch

This copy is not sealed and without a Magic: The Gathering Promo card Variant Cover by: Tyler Walpole Suggested price: $5.00 Cover Date: March 2012

Spectacular Spider-Man (Borderless, Textured Foil) Rare, 240 At first glance, you could be forgiven for thinking that this variant of the Spectacular Spider-Man card features the classic incarnation of the iconic suit