I haven’t played Warrior enough to give good advice for good items. Armor, Resistance, Damage Reduction. for lower floors, these are good affixes to have. but the higher floors you climb to, no matter what difficulty, monsters eventually do so much damage that they can kill you with one hit. even if you max out Armor, Resistance and Damage Reduction. that’s why Farm Builds are not for Climbing. you can make them go to some pretty high floors with a good Farm Build, but eventually they will hit a wall. Climbing Builds are all about killing and climbing. because you can’t waste space on reducing damage with all those affixes, you end up going for Dodge, Block, and maybe Sanctuary Mythic to stay alive, and all other affixes are for killing monsters. I think there are some Climbing Builds that have low defense and just kill monsters fast before they know what hit them.
I don’t know how much you have read on other players Warrior Builds, but there are many different ones. there are a lot of different combinations of affixes, so it is possible to make a build that fits the way you would like to dominate monsters while climbing floors.
I would suggest trying out the different weapons to get an idea of the damage they do, and the way different Skills work, and try out different Talent combinations. one reason I don’t just copy builds in the Forums is I want to try out my own Builds. there are lots of great ideas in those builds, and I use some of them, but that is the other reason I don’t just copy builds. I need to see my builds in action to see how different affixes work together with Talents and Skills. this helps me get more ideas and also helps me understand what kind of builds I run into in the Battle Arena against other players Characters.
before you look at items in the Codex, take a look in the Dictionary for Affixes, Sets, and Mythics. that way, when you look at the Items in the LegendEx, you know what they are. and look in the Forums for a list of Sets and Legend Affixes that can’t be rolled, so you don’t waste a lot of Crystals trying to get something you can only get by finding it on an item.
here is one post that will be a big help when you start crafting.