They were first printed on October 15, 1996 as CoroCoro Comic inserts (glossy), with the Pikachu incorrectly listing Ken Sugimori as the illustrator
Okay, theres a bunch of tokens for potentially a very small amount of mana, but that doesnt seem that interesting
Exeggutor Ex only requires one energy to attack, allowing it to dominate Pokemon far above its usual level
Ishkanahs graveyard matters theme is also quite powerful, so adding additional options for graveyard play isnt a bad idea
However, there is a fundamental difference between buying a Western TCG box and a box from Japan
Any damage done to Phyrexian Obliterator will force the sources controller to sacrifice that many permanents in response, a fair tradeoff for its steep mana value