Phospholiator
Phospholiator is a rare two-handed fiery grenade launcher.
A 
phospholion cannon that forms small radioactive projectiles that deal severe fire damage upon contact.
Can be upgraded to 
Phosic Cannon ★ at the Weapon Upgrade Anvil.
Ingame
Radiomessages on pickup:
- You’ve just picked up an alta weapon, or an “energy tool”, as they call it. According to my database, these usually have an extended set of features. I suggest reading its description.
Sources
Found naturally in containers:
Can be bought from merchants:
Can be obtained from special items:
Can be obtained via 
Spawnable Item Pack or 
Technical Information
- In-game ID:
ct_phospholiator - Power:
3.0 - Rarity:
Rare - Tags:
cannon,fire,grenadelauncher,minelauncher,phospholion,radiation,ranged,rare,upgradeableWeapon,weapon - File:
/items/active/weapons/ranged/alta/cannon/ct_phospholiator.activeitem