Currently Expired Monster
Currently the Grimbolt Monster is expired and can no longer be bought from the market or bred using normal means (i.e. using 2 different monsters).

The ONLY way to get another one is to breed 2 Grimbolt Monsters together.

Grimbolt Monster
Grimbolt Thumb

Normal: Baby - Teen - Adult - Egg
Mythic: Baby - Teen - Adult - Egg

Unlocked Level 9
Sells For 5,625 Icon coin
Breed/Hatch Time 9 Hours
Quick Finish Cost 9 Diamond
XP Gained 3,465 XP Logo


Once a year, the hallowed Grimbolt Monster can be seen slinking around on Monster Mountain. Though grounded in Earth and Electric Elements, historical records attribute an additional quality to the Grimbolt, an otherworldly sense that only permits the monster's arrival around All Hallow's Eve. When spooked, Grimbolt Monsters will zap into a skeletal form.

Purchase Cost Habitat(s)
199 / 995
Element Earth Element Electric

Game Generated Names
This is a list of the randomly generated names that the game give all new monster. You can change the name if desired. Please see this page for more information.
Amps Atlas Bolt Boots
Buster Charger Circuit Clay
Core Crunchy Crusty Cyber
Feedback Flash Gritty Hammer
Hunk Laser Pebbles Rattler
Rocky Sandy Shocked Socket
Sparky Static Thor Volt

Breeding Information
Building 5x5 breedingcave tn@2x
The Grimbolt Monster can be purchased for Diamond or bred by using Earth and Electric elements in the Breeding Den. Hybrids may be needed for successful breeding. Also see the comment section below for some suggested combos.
Mythic Information
Although hatching a mythic version of the Grimbolt Monster is random, your best chance to get one is to breed 2 Grimbolt Monster's together. You must have the Mythic Cave on your island in order to get a mythic. You can also use boost to better your chances.

Monster Evolution
Building 4x4 evolutionlab tn@2x
There are 2 stages in which Grimbolt Monster will evolve. Before you can reach Level 5, you must evolve your monster from a baby to a teen. The second stage is before reaching level 8 and evolves your monster from a teen to an adult. To evolve your monster you need to place it in the Dream Room. Below is how long it takes the Grimbolt Monster to evolve from each stage and the quick finish cost.
Evolve Time Quick Finish Cost
Baby to Teen 4 Hours 4 Diamond
Teen to Adult 18 Hours 18 Diamond

Food Costs per Level
Baby Teen Adult
1 2 3 4 5 6 7 8 9 10
Food per Feeding 45 95 140 185 230 275 320 365 410 MAX
Total per Level 180 380 560 740 920 1,100 1,280 1,460 1,640 MAX
Totals 1,860 Icon food 3,300 Icon food 3,100 Icon food
Icon food Needed for Max. Level 8,260 Icon food

Earning Rates
Baby Teen Adult
1 2 3 4 5 6 7 8 9 10
Normal 7 13 20 26 33 38 43 46 48 49
Mythic 7 13 21 27 34 39 45 48 50 51


  • The Grimbolt Monster was introduced on October 18, 2012, as part of Game Update 1.8.0.
  • The Grimbolt Monster became available back at market on October 10, 2013.