Here are some tips I gave another zealot looking for help some weeks ago, maybe they help you too:
RoR.builders - Zealot
I don't play Zealot anymore so maybe some experts can help you better, but I try to give a few points:
- To take all of the good stuff you need rr60+ (so you can take stagger and tzeentch's grip tactic)
- Tzeentch's grip tactic is very good, gives the target an absorb shield (the good thing about absorb in this game is that it cannot crit, so if a Boiling Blood from some Bright Wizard would crit you for 2k dmg but you have a shield up that takes absorbs 300 dmg it absorbs it all)
- Warping the spirit tactic is very good, it gives the target an increase in armor and lower armor penetration, can be dropped if you play in a premade and everyone know what he is doing, in pugs were people might not even use armor pots its a very good tactic
- Blessing of chaos is a good tactic to have, it increases all healing on target by 25% for 10 seconds (not only your heals)
-> as you have seen from the previous: most tactics require a critical heal, that means you have to get your healing critical chance as high as possible so you can proc your tactics often
- Aethiric shock is a stagger thats very valuable, try to stagger enemy healers or dd in the backline that are not attacked (damage on target breaks the stagger). If you succeed your target can do nothing for 6 seconds, if you get a stagger on an enemy healer for 6 seconds you can decide some fights. If you get ganked by a witch hunter alone you can stagger him, mount up (3 seconds) and ride into the sunset.
- Ritual of Innervation is an AOE ground target skill that should always be up, it gives you and your team valuable action points when they activate an ability, The healing ritual (right tree is also very very good because it can also proc your tactics since some patches some time ago)
- Other good tactics are: Restorative Burst if you have problems with your AP management, Endless Gifts is a very good tactic to constantly cleanse a single target (watch your AP)
- Slot armor or wounds talismans, your willpower should be at about 600, no need to go higher it has very bad returns
-Use your detaunt and aoe detaunt properly
- always be on the move, the biggest advantage of a zealot(and runepriest) is that he has a spammable flash heal on the move (Flash of chaos, the higher the heal crit the better that skill and the more your tactics will proc.
- Spec 20 renown points into dodge and disrupt, take futile strikes 1, take your initiative rune and see what your chance to be crit is, if its still to high take futile strikes 2, THEN spec the rest into heal crit., you can also go full futile strikes and then heal crit, try what you like the most, chance to be crit should be at least at zero