In regards to farming. Start with souls, they are the easiest and can be farmed using the valk in PvP or the arena. Both of which gives you glory. Horde your glory for the weekly events. These cards can vary from very week to very strong (e.g. Runesmith to Mercy) however the traits that come along with the cards are where you will get most of your arcanes. Don’t waste your glory trying to buy 16 stones when it’s a blue rarity week (1 stone per 300 glory). Value is not there (unless it is a troop you desperately want and it will make you happy). As tempting as it can be to ensure all your legendaries are traited first. Don’t. Trait what you need/want to play with your farming deck and then use your other stones to trait for kingdom star levels. Don’t go for more than 3 stars in any kingdom (with the exception of Zulkari if you run a magic heavy deck e.g. Demons). Getting your kingdoms to 3-stars bursts the flood gates on tribute rewards giving you more glory, souls and gems. If you have the cards to make the deck I personally recommend
Tank (Trent/Abhorath /Another stoneskin troop)
keeper of souls*.
However their are plenty of other posts around the forums listing other great farming lineups.
Glory chests while nice and pretty looking are glory pit. Wait for guild reward to get and spend glory keys. The weekly troops and their associated stones are far more rewarding and predictable in their loot table.