( Remember that this stuff is tentative and, quite frankly, has been going on for quite some time now. Some of these reference abilities changed in previous iterations of the Karma update )
Here are the set of tweets along with my assumptions of what they mean. Enjoy!
First up is Soul Shield, which has had it's CC ( probably a slow on shield ) reduced and it's Mantra version apparently now has a stun, which prior to this probably increased in duration with level.
it seems like the Mantra effect adds a root ( instead of a slow ) and confers some sort of bonus health on either Karma or her allies.
he mentions a few changes for, most noticeably the bit about "armor" granted. Seems her E will now grant bonus armor while tethered!
Speaking of mantra, he also mentioned it's cooldown has been greatly increased. This sort of goes with his previous statement that they aimed to make mantra'd spells feel more ultimate-y.