These are very cheap... if you just leveled Engineering, you can wait for these once you get to 350 and make your goggles. This will be the cheapest thing to make to get to push you from 35x-375.
Good luck.
Spell
Volatile Blasting Trigger
Physical
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These can be scavenged off the mechanical mobs in Eastern Borean Tundra. If your Engineering skill is high enough it's probably better to simply grind these mobs and scavenge the corpses left by other players than to waste time and mats on making the triggers. I also scavenged over 20 Handfuls of Cobalt Bolts off the same mobs.
Spell facts
Datamined from the current retail build. Numbers that scale with level or stats are shown at their base value.
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Community notes from Wowhead · 5 comments
Top 2 shown above · 1 more hereThe comments below were written by Wowhead users. They are community notes, not TheWoWDB comments. See them in context on Wowhead.
Probably, it will be the next type of powder used by engineers.