Mythical Egg

The Mythical Egg arrived with the Blood Moon Event and, unlike the limited event-only drops, it became a recurring fixture of the Pet Egg Shop. The catch is availability: it only carries an 11% chance to be in stock on any given shop rotation, so even when you have the currency ready, you are waiting on the shop to roll it before you can buy. That scarcity-by-rotation is what keeps it relevant long after the Blood Moon Event ended.

Because it sits in the standard egg shop rather than a one-time event window, the Mythical Egg is bought to be hatched, not hoarded. Its pet pool skews toward the higher-tier mythical creatures players actually want for crop multipliers and passive farm boosts, which is why people refresh the shop hunting for it.

My read: buy it the moment it appears, since the 11% stock rate means missing a rotation can cost you a long wait for the next one. The egg cost is justified mostly by the top-end pets in the pool rather than the common pulls, so treat each hatch as a roll toward those chase mythicals. For active players checking the shop often, it is one of the more reliable mythical sources in the game.