I asked this question on Pojo a while ago, but I didn't get concrete answer (it favored toward being able to use DDO, though).
So here is the scenario:
Player A plays "Pot of Duality" from his hand. The effect goes through, he adds a card to his hand and shuffles his deck. Now, player B wishes to activate his "Drastic Drop Off" that was set last turn after "Pot of Duality" fully resolves. Would player B be able to activate "Drastic Drop Off", or would he be missing the timing because the last action to occur was the player shuffling his deck (even though you are required to shuffle your deck after any search)?
Pot of Duality:
Reveal the top 3 cards of your Deck, add 1 of them to your hand, then shuffle the rest back into your Deck. You can only activate 1 "Pot of Duality" per turn. You cannot Special Summon a monster(s) during the turn you activate this card.
Drastic Drop Off:
Activate only when your opponent adds a card(s) from their Deck to their hand, including drawing a card(s). Your opponent discards 1 of those cards.
So here is the scenario:
Player A plays "Pot of Duality" from his hand. The effect goes through, he adds a card to his hand and shuffles his deck. Now, player B wishes to activate his "Drastic Drop Off" that was set last turn after "Pot of Duality" fully resolves. Would player B be able to activate "Drastic Drop Off", or would he be missing the timing because the last action to occur was the player shuffling his deck (even though you are required to shuffle your deck after any search)?
Pot of Duality:
Reveal the top 3 cards of your Deck, add 1 of them to your hand, then shuffle the rest back into your Deck. You can only activate 1 "Pot of Duality" per turn. You cannot Special Summon a monster(s) during the turn you activate this card.
Drastic Drop Off:
Activate only when your opponent adds a card(s) from their Deck to their hand, including drawing a card(s). Your opponent discards 1 of those cards.