The amount of nodes (how many triangulate can find) and level of nodes display should be based on level:
in the right zone for your level
-passive 15 yalm auto display of nodes (shows on minimap, no ability)
-when using the arbor like ability shows a general circle (like leve's) on the map, and minimap (when close enough)
-triangulate adds more description like "you sense 2 trees near, 3 far" (or some display on the minimap of near and far, and the direction (west,east,north,south), NOT location just a number on the west edge of the minimap with 3 or 2 in green, 1 in red showing the distance (2,1)) - the markers disappear at cooldown reset.
in a place higher then you:
-passive 1-2 yalms away (basically if your on top of it you should already see it, but it'll show on the minimap anyway)
- none of your abilities detect these higher items (you can only detect what is appropriate for your level)
in a place lower then you:
- passive 100 yalms
- smaller circles for arbor (better general area)
- triangulate can use sub directions like "north-west".
This can be scaled, doesn't have to be constant values:
I'm level 10, in a grade 2 area, just "ready" for that area of trees
my passive detection is only 9 yalms, say at level 15 my passive is 15 yalms, and slowly increase till maximum yalms- as the power of abilities compares to grades available at location.
The arbor scales with the size of circle and distance.
Triangulate by distance and number of nodes and if it will display sub directions or not.
Also please remove the I II III levels of abilities, if there are many grade levels in an area detect them all and just inform the player which grades are which direction (only one arbor ability, update its tooltip for what grades it can detect).
Just like mage's and their spells- base the power of the spell on level.
level 1 - 9, grade 1
level 10-19 grade 1, grade 2
so on and so forth