one piece op-09 booster box Emperors In The New World Case (Japanese) – Hachinko A Special Booster Pack to Commemorate the 2nd Anniversary The End of the New

What couldve been a perfectly balanced draw-hate piece was instead pushed way too far by triggering on every extra draw your opponents take

Reanimation style decks can get away with less, cycling themes with just cycling triggers that cause damage cant will probably need over 50

Expected value basically refers to the amount of value (in US dollars) you can expect to open, on average, from a booster box

Here is Wizards explanation of the system

You even have a great way of setting that up thanks to a reprint of Brainstorm in the deck

Temporal Mastery Temporal Mastery has the miracle chance to give you an extra turn for two mana