Currently the only way threadlings are able to synergize with mods is if you throw the grenade, no other threadling source synergizes with the buildcrafting system. This is especially bad for warlocks since our whole subclass pretty much revolves around the lil guys and there's no way to make them work with mods as even consuming the grenade makes them no longer count as grenade damage. All I want is for em' to synergize with mods in some way.
edit: needlestorm threadlings may count towards mods like power preservation but i have not tested that
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Not every threadling stems from grenades and thus not every threadling should count as grenade damage. But what does need fixing is that a consumed threadling grenade, and the perched threadlings it generates, are not counted as grenade damage, and that needs fixing. Among other things that need to be fixed with threadlings, as they're currently just flat-out non-viable. They deal way too little damage, over way too small an AoE, and they have a tendency to blow up on dead targets, thus wasting all their value.