ghosts from the past 2 booster box YU-GI-OH! It’s got more of everything that made Ghosts From the Past a smash hit Ghost from the Past Booster

And They Shall Know No Fear It looks like a simple combat trick, but in typal decks, And They Shall Know No Fear is an almost better Heroic Intervention

The rare occurrence came about due to to copyright issues around the turn of millennium, with unusual holographic cards that were only printed in the UK for around two weeks

SR Super Rare Ride of the Valkyries X SPELL Special Summon any number of "Valkyrie" monsters with different names from your hand

Moonblade Shinobi ticks both of those boxes at once

Well Dark Law is a one-sided Macro Cosmos

Riku of Two Reflections Riku of Two Reflections comes with some abilities that spice up the whole wizards-that-care-about-spellcasting bit