Take a look at some of the pieces below
Keen Buccaneer Keen Duelist Keen Glidemaster Keen Sense Keen-Eared Sentry Keen-Eyed Archers Keen-Eyed Curator Keen-Eyed Raven Keeneye Aven Keening Apparition Keening Banshee Keening Stone Keensight Mentor Malcolm, Keen-Eyed Navigator Nine-Fingers Keene Nylea, Keen-Eyed Senu, Keen-Eyed Protector Taii Wakeen, Perfect Shot Vazi, Keen Negotiator
While it does require the player to discard five cards, they can then draw two and then draw an additional card per draw
But even with that said, Japanese cards are often cheaper in Japan, becoming more expensive overseas due to demand, regional rarity and shipping costs
Gozen Match/Rivalry of the Warlords Gozen Match and Rivalry of the Warlords are both cards you can play in Karakuri, because all Karakuri monsters are earth-attribute and machine type