During each End Phase, if a DARK monster was moved from your hand, field, graveyard, or deck by your opponents card effect(s), banish all cards in your opponents hand and graveyard and inflict 500 damage to your opponent for each card banished by this effect
The issue that presented itself during playtesting was that Drana didn't have enough of an immediate impact and was too susceptible to cheaper removal spells
1 Terraforming Searches for Any Field Spell Pharaonic Guardian Jul
At any rate, each time you cast Gandalf the Grey you get to use the full bag of tricks again, and you can also blink the card to reset it
Its one of the best-selling titles in the franchise at 1.4 million copies, releasing at the height of the PS2s popularity and the franchises early success, and remains beloved for its twist on the formula by transforming the familiar dueling gameplay into a strategy title inspired by, of all things, the British War of the Roses between Lancaster and Yorkshire