I got a few suggestions:
Oath/Prayer/Pact of Damnation/Domination
An Post Mechanical upgrade to the Fury guns. Follows same principle as the Fury
Blighted Fury - Oath + Combine with Soul of Plantera or Soul of the Duke = Oath of Damnation (Shots split rapidly and home in on targets) or Oath of Domination (Shots petrify enemies)
Sighted Fury - Prayer + Soul of Plantera or Soul of the Duke = Prayer of Damnation (Shots split rapidly and steals life from foes) or Prayer of Domination (Shots inflict Venom and Cursed Fire)
Mighted Fury - Pact + Combine with Soul of Plantera or Soul of the Duke = Pact of Damnation (Shots split rapidly and hits twice) or Pact of Domination (Shots inflict Fear, Confusion and Darkness)
Devil Pistol + any Oath + any Prayer + any Pact + Spirit of the Midnight (dropped from Moon Lord) = Fatal Eclipse (Shots inflict multiple debuffs, bounce off targets and walls, split into 5 bullets when it hits (per bullet), has a 20 bullet spread, and steals health)
"Some call this gun the
Conference Call...wonder why."
Mysterious Army Clothing
Helmet: 20% Ranged damage boost
Army Jacket: 30% chance not to consume ammo
Army Jeans: 10% Ranged damage boost, 15% chance not to consume ammo
Full Set: Gain a
Tank mount. (Disabled if already have a mount equipped)
Radio Communicator
Used for the Tank mount if you don't have the Mysterious Army Clothing
Tank
"...It was supposed to run down trees...perhaps the last owner made it eco-friendly..."
(An high-speed land mount with a small jump.)