Interesting DoTA 2 Insight Topic

Dazzle isn't great in a trilane, but with any other disabler and a suitable aggressive carry his heal will destroy heroes and offer more sustainability to your carry, and with Bristleback, you have stacking slows, stacking armor debuffs, and if they get close you have a heal.
Warpath is wayyyy overlooked, farming with bristle isn't too hard, with phase boots you'll have unrivaled pursuit while ignoring towers because BB doesn't care about those.
Radiance is fantastic as well, burn damage on top of his slow and stacking spines, haha good luck bringing him down before he wipes a team

If youre spamming spells early on with his poor mana pool and don't take warpath at lvl 6, you wont be going very fast, it helps, and doesnt take long to build, adds damage...
Even with warpath, phase boots give you better ability to close the gap to use your spells..im quite aware of canceling phase, but getting there faster works for me, than i can slow, and spam quills, proc warpath, all that good stuff.
What about in team fights? Well yea wont need phase in team fights, but again what if you TP and theyre furthur away? Phase boots get you there faster, hey i could be dumb, but there are a lot of people building stupid things like blademail on him, im not gonna call them dumb for building an item that deters people from attacking you when you want them to, so more spines proc...its all personal preference.