A better deck is Harpie Lady+Relinquished with Harpies' hunting ground.
Whenever you summon a Harpy Lady you can destroy the monster equiped to Relinquished so that he can activate his effect again. This way you can clear the field and make room for many direct attacks.
This is a competitive Harpie deck and works well in KoG tier.
This is still work in progress, but here it is. I actually want to trade Sphere Kuriboh for Senju of Ten Thousand hands, but I am unlucky with NeonImpact packs...
Elegant Egotist was better than I expected, it can make you fill the board with Harpies on turn 1 or 2 and direct attacks from them does 2150 damage.