A Draft Booster has 15 playable cards
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of The Darkness Crystal's first ability)
I think Hugs would appreciate her appreciation of nature
With a few exceptions, nearly every major set released had a set of Commander decks to go along with them (and usually in batches of four)
When Vadrok, Apex Of Thunder mutates, you can cast any noncreature spell with mana value three or less from your graveyard without paying its mana cost
Cards like Veil of Summer, Spell Pierce or Flusterstorm make your counterspells useless, and also Teferi, Time Raveler is still a popular card