Their Full Blitz attack deals decent damage and attaches Lightning Energy to themselves or an ally, setting up for the powerful GX attack Tag Bolt, which can hit both the opponents Active and Benched Pokmon for massive damage
However, thanks to cards that can output monsters from your hand like "Synchron Fellows" and "Wheel Synchron", you can tolerate drawing certain cards to some extent, so I don't think it's necessary to increase the deck size excessively
If you have more than one basic Pokmon in your hand, you can place up to five cards in your bench
in my younger years, I must admit that I did end up swaying towards other card games in the years since
This means that a Karn deck doesn't need to concern itself with including many creatures to attack or block with, as it can be used to turn anything from an Unwinding Clock to a Darksteel Forge into an offensive or defensive body on the board
Storm Emeralda is especially exciting because it features Mega Rayquaza ex, one of the most iconic Legendary Pokmon in the Pokmon TCG