When recycling cards during mulligan or with effects like Dazzling Aurora, do you need to shuffle the recycled cards before placing them at the bottom of the deck?

Question

Accepted Answer

Ruling: Yes, when 2 or more cards are recycled simultaneously (whether during mulligan or from card effects), they must be placed at the bottom of the deck in a random order, which requires shuffling them.

Nuances:
- While shuffling only 2 cards can be easily manipulated, your opponent has the opportunity to shuffle again
- You won't gain much information from knowing the order of cards on the bottom of your deck