Unless you're talking about the valuable cards from the original base set, each Pokemon Generation's first TCG set, their base set, usually features a slow start to the generation
Krrik, Son of Yawgmoth Phyrexian mana is a broken mechanic because it allows you to cheat on mana, so why not play a commander to turn all of your black mana pips into black phyrexian mana
III: Each opponent loses 1 life for each creature card in that player's graveyard
They then shuffle their hand back into the deck and draw a new hand of 7
Creatures (27) 4 Bonecrusher Giant 1 Terror of the Peaks 4 Realmwalker 3 Magda, Brazen Outlaw 4 Masked Vandal 3 Goldspan Dragon 4 Dragonkin Berserker 4 Guardian Gladewalker Lands (24) Spells (9) This is only the beginning, but the basic idea is exploiting changeling along with some high-power tribal rewards for tribes that dont have enough good cards on their own
You can use them in all your decks, and theyll last throughout the Standard period