This is the gear I mainly use as Endgame RDM, is not the very best gear ever but it can help you survive when sh*t hits the fan lol.

Idle. (Enfeeble Mode)
This is for helping you to keep as much MP refresh and be ready to land all your enfeebling magic efficiently.

• Duelist's Chapeau (+1)
• Enfeebling Torque
• Dalmatica / Estoqueur's Sayon (+1/+2)
• Estoqueur's Gantherots (+1/+2)
• Magnetic Earring / Loquacious Earring
• Moonshade Earring (Mag. Acc. & Refresh +1)
• Estoqueur's Fuseau (+1/+2)
• Estoqueur's Houseaux (+1/+2)
• Estoqueur's Cape
• Sturm's Report
• Staff's Strap
• Duelist's Belt
• Bifrost Ring
• Irrwisch Ring / Tamas Ring
• HQ wind, dark, ice staff; and all the other NQ ones

Idle. (Healer Mode)
This is when you need more refresh and healing power. And, therefor, more MP pool.

• Duelist's Chapeau (+1)
• Healing Torque
• Dalmatica / Estoqueur's Sayon (+1/+2) / Duelist's Tabard (+1) (use Tabard on cure Macros)
• Serpentes Cuffs
• Magnetic Earring / Loquacious Earring
• Moonshade Earring (Mag. Acc. & Refresh +1)
• Warlock's Tights (+1) (Use in macro)
• Serpentes Sabots
• Estoqueur's Cape
• Sturm's Report
• Staff's Strap
• Duelist's Belt / Ocean Rope (humes only. if you have a MP Pool Enhancement belt use it)
• Bifrost Ring
• Star Ring / Tamas Ring
• HQ wind, dark, ice staff; and all the other NQ ones

Idle. (Nuke Mode)
Nuke ? Yes we can lol, and to land and make some decent damage we have to be properly geared.

• Estoqueur's Chappel (+1) (use in macro)
• Elemental Torque
• Dalmatica / Estoqueur's Sayon (+1/+2) / Morrigan's Robe
• Eradico Mitts
• Hecate's Earring
• Moldavite Earring
• Estoqueur's Fuseau (+1/+2)
• Duelist's Boots (+1)
• Estoqueur's Cape / Twilight Cape
• Witchstone
• Staff's Strap
• Duelist's Belt / Penitent's Rope
• Bifrost Ring
• Irrwisch Ring / Tamas Ring
• HQ wind, dark, ice staff; and all the other NQ ones

Sleeping Gear.
This can be added on a Macro since the main idea is to your sleeps MUST land and last, and all the enfeebling skill you can get helps.

• Duelist's Chapeau (+1)
• Enfeebling Torque
• Warlock's Tabard (+1)
• Pluto's Staff
• Estoquer's Gloves (+1/+2)

still adding more…