Note: Roon has an exceptionally long roaming path.
Known spawn locations (click for map image) for your "ethernere.txt" map file (note for all known Ethernere Tainted West Karana named spawn locations, see this quest entry):
P 2506.5347, 1343.6379, -217.9281, 127, 0, 0, 1, Roon_(roam)
P 4812.9102, 2269.9800, -437.3800, 127, 0, 0, 1, Roon_(roam)
P 3863.5601, 2707.4299, -455.3400, 127, 0, 0, 1, Roon_(roam)
P 1786.1500, 2142.3201, -211.1000, 127, 0, 0, 1, Roon_(roam)
P 2415.8201, 2040.6500, -213.8400, 127, 0, 0, 1, Roon_(roam)
Lets see, took him on last night helm , and a cloak of his. 100 mag chanter ranger . 6 kaa each one. Between great tanks, hybrid tanks that make it through fight or any pet tank class with the aa Ranger pulled he trampled after me, gave him the 96 air pet em 16 pet the hammer on. 1 j5 cleric and the odd rune pet didn't go below 50%.. To start the fight I got it slowed. Ranger 85khps 6500ac jumped in. To sum up the ranger tank I could tank named with outrider evasion and protection of the spirit wolf. Ever round was 35% life and his good round 70% gone lol. Auspice , third spire and a few other nice aa clicks I was tanking better Half way through. I had a wolf charmed with chanter it broke and said hello to the ranger ! Dropped her dead. So between pet who rocks and a decent t3 group gear ranger trying to tank lol it was easy. His aoe without reading him must be single target and no major effects. Bye bye Roon! Add to the win list !!!!
Are you always so negative? People don't have to share info exactly the way you want. Being negative with your replies and comments will get you negative answers if any at all. Go fight him yourself and figure out the info like some others did negative ***. Otherwise, be nice and positive and you'll get a positive answer. He did share some info for other mages basically letting them know this could be tanked with an earth pet as they are great tanks.
This dude is always up on Fironia Vie server. He messed up my quint-kiting! Is he instant-spawn? Usually nameds which drop good stuff get killed pretty quick, especially from a new xpac zone.