Forum:A few questions about ATK

Hi, I am quite confused with some effects regarding ATK, and I have a few questions.

1. I used Tuning to get Quickdraw synchron, summoned Nitro Warrior with it(no other spell cards are used that turn). I attacked a face-up attack position lightsworn ryko, and the opponent used Honest. which one wins the battle?

2. I had an Arcanite Magician on the field, with two counters. The opponent has Machine Assembly line and summoned Meklord Army of Granel, and used its effect at Arcanite magician. Then I used Call of the Haunted to revive Apprentice Magician and placed a counter on Arcanite Magician. What is the ATK of Arcanite Magician?

3. I had a Power Tool Dragon equipped with Double Tool C&D, and declared an attack with it. The opponent used Malevolent Catastrophe in response and I chained Limiter Removal. What is the final ATK of Power Tool Dragon?