Does Promising Future cause burnout when the opponent has fewer than 5 cards in their deck?

Ruling: Promising Future does not trigger burnout when there are fewer than 5 cards in the deck. You do as much as you can (look at the available cards), but burnout only occurs when a player would look at, draw, or mill cards while their main deck is empty.

Sequence:

• Promising Future resolves
• Player looks at as many cards as available (e.g., 4 cards if only 4 remain)
• Cards remain in the main deck zone during resolution
• No burnout occurs because the main deck is not empty
• Cards are recycled back into the deck

Nuances:

• Burnout could only trigger if the player had 0 cards in deck before Promising Future resolves
• This works the same way as Dazzle - it cannot cause burnout on its own
• During the resolution of Promising Future, all cards being looked at still belong to the main deck zone