My thoughts so far:
1) map scan - very useful on this map to avoid 20 min of no fight game, on the map like KC = useless, you can know/hear all the fights anyway, plus Ash sees only deaths which in many cases are way too late info - in higher ranked lobbies as soon as you see one dead body two will follow shortly and Ash by that time would have moved what...50 meters maybe.
Actually might be more useful to see actual fights going on or at least knocks.
Death icons just give a faint clue plus help to locate deathboxes on this map where you can easily lose them in the damn pink grass or other mystic vegetation.
2) tactical - if coordinated well actually is somewhat helpful, similar to Horizon ult. Yet it works as unpredictable as Horizon's ult sucking power especially when there are covers in the area = sometimes it sticks, sometimes it just does nothing.
I still don't trust either and am happy when it works out because the logics and dynamics in this game are incomprehensible e.g. how a small rock that covers maybe a foot can block incoming damage of a nade or arc star or these abilities, yet e.g. Causitc's barrel is equal to a thin piece of paper that gets blasted through no problem but at the same time can't be shot through. I guess I need to read more on quantum physics or something, just too uneducated for this game and its developers.
I would actually up the speed of this flying thing because usually it works only in close combat or on people that are just blind/blinded by the visual clutter of the map, otherwise you can see this thing coming, go take a *, come back and still dodge it, especially on this map.
3) ult - so far so good, except
a) you barely can hear it coming, the sound effect should be upped similar to a level when you choose Ash in a legend screen - so that port out blows out your eardrums even in the fight. Otherwise, it is just OP, no one hears or sees it coming. On that note also the visuals of the portal should be more contrasted similar to Wraith's portal that can be seen from miles away, this thing though... 100 meters tops if you know what you are looking at.
b) visual crosshair of the ability should be more pronounced and accurate - most of the time I just hope the game takes me to the place I intended to teleport, yet most of the time I come way too short e.g. plan is to get behind the rock and the enemy but you end up in front and basically get f%#@ as enemy has still its cover and you are now in the open not able to port back - success!
I would almost want it to work not as a crosshair but via ping system e.g. activate ult, ping the place and it ports you there.
Also for me, a very confusing part is when I try to land say on the roof from a low ground - sometimes it seems that the port will be opened onto the wall based on the crosshair, but it actually opens on the roof as intended...
To sum up - not trash, a playable legend at least in this map, yet highly unreliable in all possible ways = late info, 50/50 tactical, scetchy teleport.