Its not a deck that seems particularly impressive from the outset, but the Spellbook archetype used to be a terrifying meta-threat in the TCG years ago, and this master duel structure deck shows that it could still stand to be a threat to this day
Although Mitsuhiro Aritas original artwork (as can be seen on the earlier Japanese print) was with Yellow Cheeks due to the lightning bolts in the artwork, WotC employees thought the cheeks were supposed to be red since its Pikachu, so they changed it without Mitsuhiro Aritas permission
This card can only be Special Summoned from the Deck to the field by offering "Red-Eyes B
With very few cards that could counter it in the Duel Monsters era, it made sense to ban it
For two mana, you get a Green and White 2/2 that really messes with noncreature spells
Price Differences by Era This is the heart of the Japanese vs English debate for most collectors: which costs more, and which is the better value