yugioh cards spellbook of Judgment [RA01-EN054] Quarter Century Secret Rare You can only activate 1 Spellbook of Secrets per turn Yu-Gi-Oh Card - CT10-EN014 -

The minimum deck size was 40 way back before 1994

Even without the full loop, repeated wheels like Wheel of Fortune can devastate opponents when cast from the graveyard for 1 mana

This Mankey flies high above all the other cards in its collection, as moderately played (MP) copies of this card fetch $10.43, while LP rises to $12.49

Then there are pests and the math on Mathemagics as a exponentially powerful card draw spell

Global enchantments affect everything that is specifies on the card but local enchantment only affect one creature, player, or land that you enchant

Many of the best decks in eternal formats run Blue and Red