Is it still possible to get these: Piece of Spirit (Ice Omegle) Special Memory (Icebreaker https://omegle.site/) From what I could find in the box loot list thread are dropped from DH14 war chests. Does it look like it was from an event though? Are they still obtainable from the regular DH14 adventure mode?
Those items are obtainable from D-H-14 (War), an event map, but not D-H-14 unfortunately. The current system rotates boss mode maps every maintenance or so. We just had a maintenance this past Tuesday the 21st that added 'Jack's Shack'. Best you can do is wait patiently for each maintenance for D-H-14 (War) to be added in, and then grind.