Buy Grow a Garden Lich
The Lich is a Divine pet in Grow a Garden. It came out during the Ghoul Garden Part 3 update as part of the Harvest Reaper event. Players want the Lich because it helps their garden grow. It boosts the variant chance, growth speed, and size of Spooky-type plants near it. It also gives nearby Halloween-type pets an extra 1.46 XP per second, so those pets level up faster.
Getting the Lich takes work. First, you need a Lich Crystal from the Ghostly Gadgets stall in the Halloween Market. The market only shows up once per hour for 15 minutes. The crystal costs 60 Candy Corn or 499 Robux.
Next, the crystal gives you riddles. Each riddle asks for an item in your garden. You need a Bat from a Spooky Egg, a Crow from Grave Digging, a Scarab from a Spooky Chest, a Spell Book cosmetic, and two Halloween Candles. Once all the items are placed, you can fuse the Bat, Crow, and Scarab to summon the Lich. Those three pets are used up in the ritual.
The Lich is a limited-time event pet, so it may not be available after the event ends.