🦁 Ancient Sphinx Pet in Grow a Garden — Prismatic

Ancient Sphinx is the Prismatic pet of the Anubis Egg, with a 0.5% hatch chance, or 1 egg in 200. It has two abilities, and both take something from you first: Ancient Guardian destroys three Rare or Legendary plants to push other plants 12 hours ahead with Mirage, and Ancient Protector removes 3 age from pets to refresh cooldowns and hand out XP.

Last verified against the Ancient Sphinx page, the Anubis Event page and the ability data on the Grow a Garden wiki.

Prismatic
Prismatic

Anubis Egg, 0.5%.

📋 Ancient Sphinx at a glance

RarityPrismatic
How to getAnubis Egg (0.5%); Premium Anubis Egg (0.5%)
Hunger80,000
Ability (wiki wording)Ancient Guardian: Occasionally destroys 3 Rare or Legendary plants to grow plants by 12h and apply Mirage! Ancient Protector: Occasionally drains 3 age from your pets to refresh cooldowns and grant XP!
CooldownsGuardian 23:20, Protector 33:20 at base weight; both halve by 50 kg
VariantSepulchral Ancient Sphinx: 5% from the Sepulchral Premium Anubis Egg
AddedNovember 7, 2026 (Anubis Event, part 1)
Still obtainable?Yes, per the wiki (the Anubis Event is running)

⚡ What Ancient Guardian does

The wiki's text: Occasionally destroys 3 Rare or Legendary plants to grow plants by 12h and apply Mirage! Per the ability data, every 23 minutes 20 seconds at base weight the Sphinx destroys 3 Rare or Legendary plants in your garden (plants with favorited fruit are skipped) and advances the growth of 3 other plants by 12 hours. Every fruit on those advanced plants gets the Mirage mutation (×25). The number of plants advanced rises to 6 at 100 kg; the number destroyed stays at 3.

That makes it a trade: three cheap plants for 36 hours of growth (12 hours on each of three plants) plus Mirage on all their fruit. The text doesn't say how it picks either set of plants, so keep favorited fruit on any Rare or Legendary plant you want to keep.

⚡ What Ancient Protector does

The wiki's text: Occasionally drains 3 age from your pets to refresh cooldowns and grant XP! The ability data: every 33 minutes 20 seconds at base weight it removes 3 age from pets and refreshes the ability cooldown of 3 pets in your garden (6 at 100 kg), and each of those pets gains 15,000 XP. The text doesn't say whether the 3 age come off one pet or several, or whether the refreshed pets are the same ones that lose age.

Refreshing cooldowns means the other pets' abilities fire again right away, so the Protector is strongest next to pets with long cooldowns. The XP partly offsets the lost age: 15,000 XP is more than an early age costs but much less than an age in the hundreds (see the age calculator).

📈 Ancient Guardian stats by weight

Pet weightCooldownPlants advanced 12 h
10 kg21:003.3
25 kg17:303.75
50 kg11:404.5
100 kg11:406

📈 Ancient Protector stats by weight

Pet weightCooldownPets refreshedXP to each
10 kg30:003.315,150 XP
25 kg25:003.7515,375 XP
50 kg16:404.515,750 XP
100 kg16:40616,500 XP

From the wiki's ability data (a base value, a step per kg and a cap). Pet mutations add more on top; the pet mutations list has them. Counts between whole numbers are shown as the formula gives them; the wiki doesn't say how the game rounds them.

Both cooldowns lose about 1% per kilogram and halve by 50 kg (11:40 and 16:40). The plant and pet counts double by 100 kg. The XP grows slowly, 15 per kilogram, so at 100 kg it is 16,500; the 30,000 cap is out of reach for any realistic weight. The pet KG calculator turns age into kg.

🥚 How to get it

Only the Anubis Egg and the Premium Anubis Egg hatch it, 0.5% each. The Anubis Egg comes from the Anubis Archaeology rewards (stages 5, 8, 12 and 19, five eggs per run) and from the Anubis Coin Shop for 3,000 Anubis Coins, 149 Robux or 149 Trade Tokens, with a 25% stock chance after 6 excavations. It hatches in 4 hours; the Premium egg hatches in 30 seconds. A Sepulchral Ancient Sphinx is the rarest result (5%) of the Sepulchral Premium Anubis Egg, itself a 1% result of the Premium Anubis Egg.

⚡ See Ancient Sphinx's ability at your pet's weight → Cooldowns, chances and amounts at any age up to 500, with pet mutation boosts.

❓ FAQ

What does the Ancient Sphinx do in Grow a Garden?

Two things. Every 23:20 at base weight it destroys 3 Rare or Legendary plants and advances 3 to 6 other plants by 12 hours, giving their fruit Mirage. Every 33:20 it removes 3 age from pets, refreshes the cooldowns of 3 to 6 pets and gives each 15,000 XP or more.

Does the Ancient Sphinx destroy your plants?

Yes, 3 Rare or Legendary plants each Guardian cycle. Plants with favorited fruit are skipped, per the wiki.

How rare is the Ancient Sphinx?

It is Prismatic with a 0.5% chance from the Anubis Egg and the Premium Anubis Egg, the rarest pet in either egg.

How much hunger does the Ancient Sphinx have?

The wiki lists 80,000 hunger.

Other Anubis Event pets

← Anubis Event · Anubis Egg odds · Pet calculator and full list · Pet directory · Changelog