I have a KM/SD and a BS/Regen, but not a KM/Regen. Still, I'll give my tips on both sets.
KM is a great boss-slaying set, IMO. It's not so good at taking down tons of minions quickly or at providing much mitigation. It needs a lot of recharge to be great, but that works hand-in-hand with Regen's recharge needs. I skipped Focused Burst (slow, low DPA), Repulsing Torrent (big KB) and Confront (meh). Attacks flow fast and Burst is the only AOE, so it's a bit endurance-heavy. Regen will help there.
Speaking to the EPPs/PPPs, if you don't want to go redside, Blaze Mastery is a great pickup for another AOE. If you don't mind taking a trip redside, you can pick up Soul Mastery, which will allow you to pick up Shadow Meld, a great defense buff that also benefits from tons of recharge. Alternating between MoG and Shadow Meld will help make up for the lack of defense & resistance in Regen.
I like Speed, Leaping, Fighting and Leadership for the APPs. Speed for Hasten & Super Speed, Leaping for Combat Jumping (maybe Super Jumping if you like to have both), Fighting for Tough & Weave, and Leadership for... everything. Vengeance is an especially nice buff for teaming Regens.
I have a KM/Regen levelled to 20 so far.
The only thing I have skipped (or plan to skip) is confront.
I like the AOE knockdown potential of Burst and I find Repulsing Torrent and it's KB as a great damage mitigation tool. Just be courteous when using Repulsing Torrent on teams.
Destiny-Barrier* along with MoG and Shadow Meld* from red-side I'm hoping to mitigate even more incoming damage as often as possible.
*Destiny slotting and Shadow Meld advice given to me my forumites in another thread.*
Creepy - Claws/WP Clown - 50 - August 10, 2008
Juniper's Daughter - Fire/Regen Scrapper - 50 - April 12, 2009
Fae Leigh - Grav/Kin Troller - 50 - May 30, 2010
There aren't a ton of KM posts these days and while I do see some KM/Regen posts on Google, they are older or PVP focused. I am looking for normal PVE stuff.
There was a recent post about Regen and what would go well with it, and KM was listed as complimentary (due to -DMG and knock down), so I thought I would dip my toe in and ask about it.
I was wondering if anyone had experience with KM/Regen in particular. I like the play and concept feel of both sets, and as long as it's at least reasonably effective (decent enough dps, able to approach various caps) I would be up for putting some time and inf into seeing where it goes.
I am going to take a wild stab at starting to put a build together, and just wanted to see if there was any wisdom out there to work with before I started, such as...
Whats a good APP to compliment the sets?
Whats the best attack chain?
From other builds, I assume I will be taking all of Regen, minus Revive, but which KM attacks are skippable?
Thanks for any insight... after I have a few rough concepts, I will hazard putting something together, but I warn you I know just enough to be dangerous with MIDS and may need some help.