Not from scratch. In Palworld v1.0.3, Grizzbolt cannot newly learn Double Blizzard Spike under verified methods (Grizzbolt breeds only from Grizzbolt parents in v1.0.3), but it could in v0.7.0. A legitimate pre-v1.0.3 Grizzbolt that already carries it can pass it on, so this build requires a legacy Pal. The facts behind this answer are graded B and come from 2 registered sources.
Type
ice
Power
700
Cooldown
30s
Range
5000
Skill Fruit
No
Other Pals
2
Power rank among ice-type skills
3 of 34
Grizzbolt breeding recipes
1
Fixed passives on Grizzbolt
0
Custom slots available
4
Verified evidence claims behind this verdict
1
Grizzbolt parent pairs with a direct source of Double Blizzard Spike
0 of 1
Double Blizzard Spike breeding route for Grizzbolt: 0 of 1 parent pair include a direct source.
Double Blizzard Spike has no Skill Fruit in v1.0.3: 2 of 299 Pals obtain it without one.
Other Pals that learn Double Blizzard Spike naturally
Component
Level
Frostallion Noct
55
Frostallion
60
Why
No obtainable Skill Fruit for Double Blizzard Spike is verified in v1.0.3.
In v1.0.3, Grizzbolt can only be bred from two Grizzbolt parents, so no other species can bring Double Blizzard Spike into its lineage.
Double Blizzard Spike was obtainable on Grizzbolt in an older version through a verified path.
A Grizzbolt that already carries Double Blizzard Spike can pass it to its offspring in v1.0.3, so the build survives only through an existing legacy lineage.
How Double Blizzard Spike can be acquired on Grizzbolt in v1.0.3
Current method
Available for Grizzbolt?
Note
Learned by level
No
Grizzbolt does not learn Double Blizzard Spike by level.
Skill Fruit
No
Double Blizzard Spike: no obtainable Skill Fruit grants it.
Species-exclusive
No
Double Blizzard Spike is not exclusive to Grizzbolt.
Breeding inheritance
No
In v1.0.3, Grizzbolt can only be bred from two Grizzbolt parents, so no other species can bring Double Blizzard Spike into its lineage.
Verdict per requested component on Grizzbolt in Palworld v1.0.3
Can I still learn Double Blizzard Spike on a new Grizzbolt?
No. Grizzbolt breeds only from Grizzbolt parents in v1.0.3 in Palworld v1.0.3. Only a Grizzbolt that already carries Double Blizzard Spike from an earlier version satisfies this build.
Can a legacy Grizzbolt pass Double Blizzard Spike to its offspring?
Yes. Grizzbolt can be bred from two Grizzbolt parents, so an existing carrier can pass Double Blizzard Spike on. It cannot be introduced from outside the species.
Did this change with Palworld v1.0.3?
Yes. In v0.7.0 this build answered CURRENTLY_OBTAINABLE; in v1.0.3 it answers LEGACY_REQUIRED.