2.3. Stat Points
You will need some different stat point distributions for different builds, lets talk about them first, then I will give you some build examples.
Proficiency
Determination
Brutality
These three stats are our Main Offensive Stats. You always need a little proficiency for some decent and constant damage-healing. While doing PvE, You need Max. Determination. While you playing as Full Healer, You need Max. Brutality.
Vitality
Willpower
Bloodlust
These three stats are our main defensive stats. We always need Max Vitality since our Health Pool is not really enough. We don't need to distribute Willpower manually since we can get some by getting special defenses. We need Bloodlust just for PvE builds to heal ourselves.
Critical Chance, Critical Damage, Double Attack and Swiftness are the secondary offensive stats that we need. Summoners plays with maining Critical Chance, and supporting it with Critical Damage.
Survivability, Caution, Physical Defense and Concentration are the secondary defensive stats that we need, Survivability for healing, Caution for staying alive, Concentration for PvE shields and Physical Defense for all of the *rage words here* classes like psy and warrior.
Now let me help you about distributing the stats. You Always need 250 Critical Chance and 250 Critical Damage, Also you need 250 Double Attack for getting drops of blood. All of your builds needs those 3 stats.
For PvE, after doing these 3, distribute your main stats in a ratio like 2.5P/5D/3.5B. For PvE Defense, Get 350 Bloodlust, 250 Concentration, 250 Caution and Max. Vitality.
For PvP, after these 3 secondary offensives,distribute your mains like 1P/2B . For defensives, 250 caution, 250 survivability, after that get Max. Vitality or get some protections like 250 physical protection.
For FH, After these 3, get 200-250 Swiftness, rest of the stats goes like 1P/3B or 2P/5B. For defense, 250 survivability, 300 caution, 250 physical protection and rest Vitality.
3. Builds and Playstyles
Like I mentioned before, you can play the summoner as DPS, Support or FH. DPS Summoner has the one of the greatest Damage output, Support aspect pvp build has a great healing and great AoE DoT damage in battlegrounds and it always debuffs the enemy so its useful, FH summoner is the greatest pocket healer and also can do a great amount of Heal Bursts. All you need is practice it a little. Lets check the builds.
3.1. PvE Summoner Build
Link: PvE Summy
All you have to do is, if you are dealing with a single target, put ritual of pain, spam Howl of Death and Life Tap. Tear skills are some good ways to burst. Use Bloodletting so you can spam faster. We have some CC's for Heroics so you can help your team. Also aegis and veil would help a lot. For crowded mobs, put ritual of plague and use volatile infection skill. If there is more than 5-6 mobs, use volatile infection twice to be sure that every single mob is infested. than keep going with Life Tap+Howl of Death spam.
3.2. PvP Summoner Build
Link: PvP Summy
I'm not going to explain every single play style in here, all you need to do is put your aegis on yourself every time its available, throw a few volatile infections if you are away from the sights and its crowded in middle, use rituals, spam skills. use your healing skills and veil wise. PvP Summoner build is a little flexible since you can get a few more heal based skills or more aggressive ones, after you get whats happening, you can fix it as you wish. Since your healing skills has long cooldowns in this build, you will need high brutality, dont forget that. You should get some mobility skills from your reincarnations like flash or glint so you can kite your enemies easily.
3.3. PvP Full Healer Build
Link: FullHealer Summy
All you need to do is put your aegis on a target, which is mostly yourself, and spam dark renewal. If you see someone going down of 70% put searing. If you see someone going down of %40, use Ties first then searing. If you die, use veil. if you keep dying, use reanimation. Use your Channel of Life to heal people 50% of their health and use Recovery to heal yourself 50%. BE CAREFUL ABOUT WHO YOU PUT YOUR AEGIS ON. Whoever you put it, you will spam your dark renewal on them so be sure that not to choose a scout or mage because they can go invis. Be selfish while playing FH, dont be a pollyanna or you die because you are squishy. You should think about getting Defensive Screen from paladin reincarnation or Divine Foresight from Priest reincarnate.
Also, here's a tip about Fullhealer Summoner. If you get 300 swiftness, Bloodletting skill's cooldown will be back whenever its over. Thats really not my playstyle but if you want the best heal output, use 300 swiftness and abuse bloodletting!