You guys really want Lissandra to ult herself...
May I ask why? First, you added the heal, and now, she gets a massive amount of mana back. This is cool and all, but isn't the problem that when Liss goes in and ults herself......she has almost nothing to do afterwards?
Why not reduce the CD of her basic abilities based on how many enemy champs she hits with the AoE of her ult (and only when she ults herself)? I feel that would give her plenty of incentive to ult herself, because when she comes out of it, she'll be able to continue fighting instead of having to need to wait on CDs.
For example, when you dive into the middle of a team, you generally use your E to get in there, W to hold everyone in place, then ult. So, when you come out of your ult, the only thing you have off CD is your Q, which is nice to have, but you have no idea how many times I wished I could have my W up again when I came out of ult, or possibly my E again if it turns out my dive wasn't that great. Both have CDs long enough, that they won't even be off CD if you ult yourself, and Zhonyas afterwards.
Just an idea.