Go to the witch during night time after completing the quest in which you get a lizard egg for her. The quest is called ''To tame a raptor'' and it should give you 5 lure to get a raptor for her, but you can just cancel the quest and you remain with 5 lures for free.
To craft reptile's lure:
| Swamp Mash | - | Aphrodisiac | Swamp Mash | - |
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Swamp Mash:
| Vine of Swamp | Pulp (Blue) | Marsh Breath | Pulp (Green) | Marsh Breath |
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Aphrodisiac:
| Water Lilly | Blue Essence | Succubus Leaf | - | Green Essence |
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Here's the LD guide, it has all the crafting recipes:
https://docs.google.com/spreadsheets/d/1kk1nVwdcqxsqkysRpLgMoRE0wKDOmMXYfxKpDsBl...