For all intents and purposes, the exchanged card is taking the place of the original card
Alternatively, how about playing Forge[/author]]Chancellor of the [author name="Forge"]Forge[/author] to make four Goblin tokens with haste, attacking with your army, getting counters from the Curse, and following up with a Volt Charge the following turn
Avalon X TRAP Target 5 "Noble Knight" monsters in your Graveyard, including at least 1 "Artorigus" monster and at least 1 "Laundsallyn" monster
Another thing of note, every duel should be finished both with the loaner deck and a custom deck of your making, since there are different rewards for each this encourages you to build decks that can fend off whichever mechanic the opposing CPU deck runs on
Sometimes it happens faster but shouldnt be consistent
They are reducing an opponent's life total, destroying creatures or artifacts, or drawing extra cards