Greifen Stats and Best Build

Weapon			Mods
Greifen (Artian)			Element Ammo Powder Ignition Mod
Attack		Affinity		Defense
330		5%		0
Decoration		Blaze-Precise Jewel 3 Bandolier-Precise Jewel 3 Crit Element-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST II
Element Type		Fire Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This is an equipment setup for the Artian Heavy Bowgun using Flaming Ammo. Even when conditions are optimal, the maximum Affinity caps at 75%, so to ensure stable damage without relying on critical hits, Attack is boosted with bonuses. While the Reinforcement Bonus can be adjusted to increase Affinity instead of Attack, make sure to at least get Capacity Boost x2.

Weapon			Mods
Greifen (Artian)			Element Ammo Powder Ignition Mod
Attack		Affinity		Defense
330		5%		0
Decoration		Stream-Precise Jewel 3 Bandolier-Precise Jewel 3 Crit Element-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST II
Element Type		Water Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This equipment setup for the Artian Heavy Bowgun is designed for Water Ammo. Even under optimal conditions, the maximum Affinity is capped at 75%. To ensure stable damage without relying on critical hits, Attack is boosted with bonuses. While the Reinforcement Bonus can be adjusted to focus on Affinity instead of Attack, make sure to at least get Capacity Boost x2.

Weapon			Mods
Greifen (Artian)			Element Ammo Powder Ignition Mod
Attack		Affinity		Defense
330		5%		0
Decoration		Bolt-Precise Jewel 3 Bandolier-Precise Jewel 3 Crit Element-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST II
Element Type		Thunder Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This equipment setup for the Artian Heavy Bowgun is designed for Thunder Ammo. Even under optimal conditions, the maximum Affinity is capped at 75%. To ensure stable damage without relying on critical hits, Attack is boosted with bonuses. While the Reinforcement Bonus can be adjusted to focus on Affinity instead of Attack, make sure to at least secure Capacity Boost x2.

Weapon			Mods
Greifen (Artian)			Element Ammo Powder Ignition Mod
Attack		Affinity		Defense
330		5%		0
Decoration		Frost-Precise Jewel 3 Bandolier-Precise Jewel 3 Crit Element-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST II
Element Type		Ice Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This equipment setup for the Artian Heavy Bowgun is designed for Freeze Ammo. Even under optimal conditions, the maximum Affinity is capped at 75%. To ensure stable damage without relying on critical hits, Attack is boosted with bonuses. While the Reinforcement Bonus can be adjusted to focus on Affinity instead of Attack, make sure to at least secure Capacity Boost x2.

Weapon			Mods
Greifen (Artian)			Normal Ammo Magazine Normal Ammo Powder
Attack		Affinity		Defense
330		5%		0
Decoration		Forceshot Jewel 3 Bandolier-Precise Jewel 3 Opener-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST I
Element Type		Paralysis Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This is the recommended best equipment using the Artian weapon for the Heavy Bowgun with Normal Ammo. Since Normal Ammo can only shoot 2 rounds by default, make sure to get at least Capacity Boost x2. Not only can it shoot Normal Ammo, but it can also fire Paralysis Ammo Lv2, providing great crowd control capability in multiplayer. The Sheath Jewel slot is flexible, so you can replace it with something like Medicine Jewel 1 without any issues.

Weapon			Mods
Greifen (Artian)			Pierce Ammo Magazine Pierce Ammo Powder
Attack		Affinity		Defense
330		5%		0
Decoration		Pierce Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST I
Element Type		Paralysis Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This is the recommended best equipment for the Heavy Bowgun with the Artian weapon, optimized for Pierce Ammo. Since Pierce Ammo can only shoot 2 rounds by default, make sure to get at least Capacity Boost x2. In addition to Pierce Ammo, it can also fire Paralysis Ammo Lv2, providing crowd control capabilities in multiplayer. The Sheath Jewel slot is flexible, so you can replace it with something like Medicine Jewel 1 without any issues.