Tengu format ruling
The Agent of Wisdom - Mercury
Card effect (current official text)During your Standby Phase, if you controlled this face-up card and had no cards in your hand at the end of the opponent's last End Phase: Draw 1 card.
Rulings
- When it is the END of your opponent's End Phase and you have no hand, then The Agent of Wisdom - Mercury's effect activates. So if you activate Dust Tornado during your opponent's End Phase, and Set your last card in your hand, and have no cards at the end of the End Phase, The Agent of Wisdom - Mercury's effect activates.
- If your hand was increased during the End Phase by activating Jar of Greed, and you have a card in your hand at the end of the End Phase, then The Agent of Wisdom - Mercury's effect does not activate.
- If your Standby Phase is skipped then The Agent of Wisdom - Mercury's effect disappears.
- If you have multiple The Agent of Wisdom - Mercury you can draw multiple times.
- When you have The Agent of Wisdom - Mercury on your side of the field and you have no cards in your hand at the end of your opponent's End Phase, but it is destroyed before your Standby Phase (such as with Ring of Destruction during your Draw Phase), then you do NOT draw during your Standby Phase because The Agent of Wisdom - Mercury is no longer on the field.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.