100% support?
FF/Dark
If you want 95% support and like 25% offensive bonus on top of that, FF/Sonic.
Honestly from a primary position, each offer support from a different perspective. Cold Dom have debuffs, Storm have controlled chaos, FF have some crowd control, Empathy for healing and buffing, etc. The secondaries offer different things but the least "100% support" secondary is Archery. Not saying it doesn't completely offer support, it just offers the least of the other options.
I've found all my Defenders to be support, but my Storm/Dark and Storm/Sonic have been my favorites even though I've felt like I've contributed with all of them.
50s: Bla- Arch/Mental Cont- Mind/FF, Earth/Cold, Ill/Therm, Earth/Rad Dominator- Plant/Psi, Elec/Earth Corr- Fire/Storm, Arch/Sonic, Rad/Kin, Beam/Sonic, Psi/Time Stalker- Elec/SR Def- Storm/Dark, Emp/Psi, Dark/Elec, FF/Arch, TA/Ice, TA/Elec, Kin/AR, Cold/DP, Traps/Psi Scrap- Fire/Shield Tanker- Dark/Mace, Ice/Kin Brute- Claws/WP, SS/Energy, BS/Elec
Define "support"
My dark defenders make nearly any team they're on pretty much insta-win with debuffs.
My storm defenders increase the team's damage and safety quite a lot.
My cold defenders do the same as my storm defenders except less damage, more safety, and some other nifty tricks.
etc...
Really, defenders are support toons, but some are force multiplers and some aren't. If you want to be generic, roll "healbot" empathy defender and learn nothing. Or the kin "buffbot" ... pair it with archery as recommendation, as FS + rain of arrows with siphon speed is a nice combo.
If you want to be invited to my teams (rhetorical statement - not that we even play on the same server, but hear out my logic), I look for rads, darks, storms, trick arrows and colds before I look for kins and emps. This is somewhat due to the excess of heal and buffbots, but it's also because I like making things die quickly, whether that's +4 boss farms, LR farms, speed ITF's, you name it. -res debuff play a huge part in "things dying quickly". I had a good team last night with 4 defenders (dark dark emp ta), 1 troller (kin) 1 scrapper 1 tanker 1 blaster (electricity at that), only one of them 50 (emp/arch) and most under 40, destroying 54 boss farms. /shrug
Thank you for the advice.. Id like to play something that isnt MEGA common like my other 2 toons and maybe requires a bit more skill to play.
Rad/* is one of the kings of the game, bringing both -res and +dam/end. There's some thinking involved with toggles but nothing major. I enjoy toggle pulling multiple groups. Good place to start.
Cold/* will give you a solid team role with great defense coupled with force multiplying goodness that is sleet. Heatloss is a nice power, and benumb is excellent for hard targets, snowstorm is fantastic mitigation at various points in the game.
Dark/* is a pve monster, -res for force multiplying and a whole lot of control. Fades a bit as you start fighting +3-+5's as your abilities mostly have to hit, but a monster.
Storm/* was my first controller and first defender and first corruptor. I love storm to death. It is amazing. But it is not a neat package, and not easy to play (nor particularly welcome due to the KB stigma from gale, hurricane, tornado and LS), so I'd recommend going with rad instead to start.
Rad is very welcome, everywhere. Its toggles are expensive for a reason - they are amazing. Don't make the newb mistake of skipping rad's toggles because they're "expensive". That's something I've heard a few times now.
K.. you've convinced me with Rad as my primary.. as a secondary, is Rad overkill? or should I look at another for a their secondary effects?
Rad/Sonic is very popular currently because sonic further force multiplies by debuffing resistance. There is a guide in the guide section.
The upside to this on a large team is stuff dies faster, but you might not be as pleased with your numbers.
Rad doesn't really have huge synergy with anything, in my experience. Rad/Sonic is probably best single target and team-boosting damage, Rad/Dark is better utility and control as well as very solid ae damage, Rad/Archery might be best overall AE damage (as far as your individual orange numbers)... Rad/Psy also has a good pair of AE's.
There's a lot of ways to go, it depends if you're big team, small team or solo inclined and whether you prefer to fight +2's or +4-5's. That said, Rad/Sonic is 'hot' right now for good reason.
Rad Emission/Sonic Blast for ST Focus (Example: AV and GM Specialist or Soloing)
Radiation Emission/Ice Blast for Mixed ST and AoE Focus (Example: General Teaming)
Radiation Emission/Dark Blast for AoE Focus (Example: Large Team AoE Steam Rolling)
So far I have a 50 Fire/Kin and a 50 BS/WP.. I wanted to roll a defender for 100% team support for Taskforces and Rikti Raids.. Any suggestions for an appropriate powerset combo?