This is going to be a long post
Jungle: http://na.leagueoflegends.com/en/featured/preseason-update/8400-8436?build=31020328
- Guardian because Sej has anti-synergy with After Shock since you have so much durability for the first 3 seconds of a fight anyway and you don't have the opportunity to stack up Grasp
- Perseverance because you don't need to push towers as a jg and the 14% extra armour/MR when you flash/smite is pretty good
- Conditioning because you shouldn't need the 3 extra armour to clear and it's strictly better after 10 min
- Overgrowth because the other two do nothing for you
- Perfect timing because Stoneplate is OP, a quicker Stoneplate with a shorter CD is even more OP
- Celestial Body because 100 HP for a very low cost since you mostly fight jungle creeps and CC in early ganks is amazing
Top Lane: http://na.leagueoflegends.com/en/featured/preseason-update/8400-8437?build=30020216
- Grasp is amazing on any lane tank, better trading, free HP, what's not to love?
- The lower tier resolve masteries for pretty much the same reason as in jungle
- Manaflow Band because your W costs 80 mana and ignoring that cost and getting some extra back for it is pretty good
- Scorch because free poke on W
Option 1: http://na.leagueoflegends.com/en/featured/preseason-update/8100-8128?build=12211326
- Mostly about item CDR
- Dark Harvest gives some bonus harass and scales up pretty well late
- Eyeball collection because Sona has great AP ratios
- Taste of Blood because Sona's only CC on her base kit is E Powerchord which is janky to use with Cheap Shot and she has no dashes so can't utilise Sudden Impact
- Ingenious Hunter for item active CDR, the main reason for this spec
- Perfect timing lets you get Zhonya's down to about a 30 second CD when you take Ruby Sightstone and makes it affordable as a support
- Cosmic Insight, because CDR
Option 2: http://na.leagueoflegends.com/en/featured/preseason-update/8300-8326?build=41200127
- Summoner Specialist should be Looter, but I can't add that mastery
- Basically a less offensive version of the last page, generates more gold with Looter and free boots but doesn't have the damage keystone
Option 3: http://na.leagueoflegends.com/en/featured/preseason-update/8200-8214?build=20202336
- More standard page
- Aerie seems pretty solid on healers in general
- General focus on CDR with Ultimate Hat/Transcendence/Cosmic Insight
- Gathering Storm because Sona scales very well late and wants AP into the lategame
Option 1: http://na.leagueoflegends.com/en/featured/preseason-update/8100-8112?build=10220208
- Electrocute is a lot of burst especially with Gunblade rush
- Eyeball collection because extra stats on a stat hungry champ
- Sudden Impact should always be active thanks to R
- Ravenous Hunter doubles down on Akali's Vamp
- Perseverance is the best of poor options, you don't really have the stats to make the second row work, you don't really have use for extra tower pushing and Font just doesn't work
- Revitalise is the entire reason for Resolve secondary, multiplying all of your very strong healing is very good
Option 2: http://na.leagueoflegends.com/en/featured/preseason-update/8100-8112?build=10220016
- Triumph keeps you alive after executing a target
- Coup De Grace helps you execute said target
Option 3: http://na.leagueoflegends.com/en/featured/preseason-update/8100-8112?build=10220323
- Better GA or Zhonya's
- 650 gold off your finished build
http://na.leagueoflegends.com/en/featured/preseason-update/8000-8008?build=01100207
- Lots of AS in Precision for W
- Triumph to keep you alive in fights, since Overheal doesn't really do anything unless you're at full HP, which will be pretty rare
- Coup De Grace just to ensure you finish people you get on
- Perseverance means you stick to people you flash on
- Revitalise for W and R
Mid: http://na.leagueoflegends.com/en/featured/preseason-update/8100-8112?build=10210132
- Can't really use Meteor since Q/QW is your main harass and it's to easy to dodge Meteor when you're not CCed in some way, this makes Electrocute the best option
- Eyeball collection because Zyra already has a great vision game with Seeds
- Taste of Blood for some extra trading power and sustain
- Ravenous Hunter so your plants heal you up since they should be tagged single target
- Transcendence and Ultimate Hat because Zyra loves CDR and has a powerful ult that's great when it's up more