Playing Magics most famous Vampires and efficiently taking out the board while doing it
Though its only got 2400 ATK, so killing something these days might be difficult, that still effectively means smacking the opponent with an extra 2400 points of damage
When your opponent Normal, Flip, or Special summons one or more Monsters with 1,500 or more attack points, Bottomless Trap Hole lets you destroy and then banish all of those Monsters
It gets a pretty intense anime art treatment now, with the Demon holding a quill out for you to sign at your own peril

1 Harpies Pet Dragon 1 Cyber Harpie Lady 3 Harpie Queen 3 Harpie Channeler 3 Harpie Harpist 3 Harpie Perfumer 1 Harpie Dancer 1 Tempest, Dragon Ruler of Storms 1 Dragunity Legatus 2 Dragunity Guisarme 3 Dragunity Remus 1 Blackwing Zephyros the Elite 1 Mist Valley Baby Roc 1 Harpies Feather Duster 2 Harpies Hunting Ground 3 Hysteric Sign 1 Elegant Egotist 1 Alluring Mirror Split 3 Dragon Ravine 3 Harpies Feather Storm 2 Hysteric Party 1 Dragunity Knight Areadbhair 2 Cyber Slash Harpie Lady 1 Crystal Wing Synchro Dragon 1 Dragunity Knight Gormfaobhar 1 Black Rose Moonlight Dragon 1 Dragunity Knight Gae Dearg 1 Mecha Phantom Beast Dracossack 1 Raidraptor Arsenal Falcon 1 Lightning Chidori 1 Tri-Brigade Shuraig the Ominous Omen 1 Hraesvelgr, the Desperate Doom Eagle 1 Harpie Conductor 1 Hi-Speedroid Rubber Band Shooter 1 Dragunity Knight Romulus Add Harpie cards from your Deck to your hand by sending Hysteric Sign to the Graveyard during the Battle Phase via Magical Hats