Looking for these items, they are listed in order of importance for me:

Any 2-4* Demo Suit with Shadow MAX! (May be willing to buy if crafted into Merc Demo Suit)

Any Firotech Alchemer line ASI Very High

Any 2-4* Blast Bomb line with ctr high or if you have it crafted into the Irontech line that too

Leave your offers here or in-game.

Additionally I'm willing to trade any of these items in my inventory:

4* Heavy Demo Suit Normal MAX!

5* Electron Vortex CTR High

5* Graviton Vortex CTR High

4* Radiant Sun Shards CTR High