Skipping from one to three mana is a huge deal, and doubly so in a deck like this
Rakdos, the Muscle Rakdos, the Muscle is a 6/5 flying, trampling creature for 5 mana, so wheres the downside
Some modern card treatments are applied prior to the final clear coat such as etched foiling and other similar effects
This is the kind of card that ends games fast if your opponents arent ready to deal with a sudden, massive, hasty board
Youd much rather have Viashino Pyromancer two damage and a 2/1 body for two mana, than Bonecrusher Giant two damage and a 4/3 body over five mana
To use a Pokmon's attack, you need to have enough Energy attached to meet the energy cost