The 1st edition pack printing error occurred in late 1999 during booster pack design changes for the foreign (non-English) 1st edition Base set, and thus have no connection to the original English Base set 1st edition Shadowless card print run
that target is unaffected by card effects this turn, except its own, and if you have 3 or more Spells in your GY, it cannot be destroyed by battle this turn
Solar Beam 90
#3 Mega Gengar ex Battle Deck Despite being only a Level 2, the Mega Gengar ex Battle Deck has a lot going for it, and can be upgraded relatively easily to the powerful Mega Gengar ex Dark Box deck
That last one is a particularly odd choice given its only shown up on a single card after its initial introduction in 2008's Shadowmoor block, but Heggen says it was explicitly used as a visual joke here: the symbol looks like the quarter-circle joystick motion required to do Ryus Hadoken ability in the video games
Thanks to this, no duel is a complete waste of time