the whole point of the format) it simply locks them out of casting anything that is not in their hand, spitting in the face of Flashback, Graveyard Strategies, Impulse Draw, Rebound, you name it
Each upkeep, you put an age counter on your card, then pay the cumulative upkeep cost for each age counter on it
He's also an excellent blocker, as his toughness can quickly rise to staggering proportions, making him a true force to be reckoned with.
Use the card designs on these pages as inspiration to make your own Pokemon cards
[1] 2 Draw seven cards from your deck
Firkrag notably provides additional value for goading, as whenever a creature deals damage to one of your opponents, if it had to attack such as through a goading effect, you can put a +1/+1 counter on Firkrag, drawing a card in the process