Enemy Sense in its current form has three problems:
1) It effectively is doing two unrelated and powerful things at once: letting you detect monsters, and giving you extra encounters (extra XP)
2) Players feel the need to take it just so they don't miss or have to manually search for encounters on each floor.
3) The automated nature of the extra encounter sometimes results in unfortunate occurrences, including a notable case where a player got blocked into a dead-end when a *summoner* spawned in the only hallway out of that part of the level. This probably will only get worse once Relic Wraiths are in, since this will be able to spawn them too.
PROPOSED CHANGES
1) Fully exploring a level will automatically give you Enemy Sense's current effect on that level. No upgrade required.
2) Enemy Sense the upgrade will reveal all enemies on the level.
3) A new upgrade, Enemy Lure, will be added. Enemy Lure can be activated once per floor (from the Transmutations menu) to spawn an additional encounter. Note that Enemy Lure does *not* require the Enemy Sense upgrade has a pre-req.
4) Vodun Mask will retain Enemy Sense (in its new form) as its starting upgrade, since it still pairs well with Far Summon I. Also, because I don't want new players to stumble unwittlingly into an upgrade that will now be dangerous to use (as Enemy Lure will be, due to the possibility of calling Relic Wraiths with it.) Cryptid positions will be slightly adjusted so that purchasing Enemy Lure as your XL5 upgrade gives you the ability to find them all (which is almost true anyway, but worth underlining here.)
5) Old-school Enemy Sense was interpreted by AI summoners as an XP bonus and a greatly boosted chance to have cryptids in their stable. With these changes, Enemy Sense will be just an XP bonus (since if they were a player, it would prevent them from missing encounters on a level), and Enemy Lure will be an XP bonus + cryptid chance (since it of course allows extra encounters.)
NOTES
In previous posts, even recently, I had discussed splitting the Enemy Sense detect monster effect even further, into two separate upgrades. I want to hold back on that for now and see how much mileage I can get out of fixing the obvious problems (the upgrade basically doing two things at once) before I make changes that address what are currently only theoretical problems.
Since the Relic Wraith change more or less requires Enemy Lure not be automated, this change is slated for the next build.
Finally, this is *not* part of the second pass on relic upgrades. That will be a bigger deal and I'll be noisy about it when I happens. This is a fix to a specific upgrade, in part to adapt it properly to a new system. It is not anticipated that any other upgrade changes will happen in the Relic Wraiths build.
It doesn't happen at the moment, no. I'll see what it would take to do that, but it might have to wait the build after this, we'll see how time looks. 