Things like Immortal Eyes, Giant Scorpions, Void Horrors, etc. Stuff that can be a pain to just naturally run across in monos. Are there woven echoes that specifically spawn any of those prophecy objectives?
I don’t think so, but in case you don’t know, not all enemy types can spawn in each Timeline.
You can reference here in tunklabs Bestiary if oyu are locking for specific ones and which timeliens there are spawning in.
I personally had never problems on finding specific enemies, but I usually horde 100k+ favor and put them all into prophecies so I always have a wide range of different prophecies so by naturally playing monolith I will fulfill most of them without even specifically targeting anything.
I’ve been looking at Frozen’s spreadsheet, but even then, they don’t show up in every echo in the timeline, so it can take a while.