Disclaimer: I am a trash 2k dota player and itemizing beyond what the guides say is a huge struggle for me.

I randomly decided to add veno to my support pool and have been playing him a lot as 4 and 5. After following torte's guide pretty strict for several games, I found that I would be out of mana after ulting, and the game would be over before I could disassemble tranquils and build greaves. In my more recent games I started building arcane boots after finishing wand, and it has felt much better. I no longer feel like a ranged creep after ulting, and I can finish greaves in time for them to be useful for the team.

Is this a huge no-no for any reason? Obviously if someone else is also building greaves, it's better to go tranquils into boots of bearing. But at my shit tier level of play I haven't felt a major setback by not having the healing from tranquils. The mana feels more valuable, allowing me to spam more wards and still be able to gale ult.