Theres also Awaken the Ancient to animate some of your mana base into more giants, and having giants in hand lets you play your Ancient Amphitheaters untapped
All the other cards are still hidden and no information about them was gained (except that they no longer contain the land that was removed, which is information that would have been gained regardless), so they're already random and there would be no point to shuffling them further
cards with your Leader effect, activating several Characters in the same turn
Theyve Gone Full Mad Max Not only are scalpers hoarding stock, theyve turned everyday locations like Target, Costco, and GameStop into lawless wastelands
But its still going to be really strong late in the game
You can do this step after you pick them