Cast Talent of the Telepath, note the two remaining cards.
Immediately cast Day’s Undoing.
Expected result: First two cards drawn are the one’s put back by Talent of the Telepath
Observed result: 6 random cards are drawn.
Both players move all the cards from their hands to their libraries.
The libraries are then shuffled.
Both players draw 5 cards.
All cards in your hand gain 3 mana.
Yeah that’s supposed to happen.
Yep. Day’s Undoing shuffles the library.
Hmm, I remember it saying each player discards their hand. Oh well 