Shen and Zed Ult Buffs
Zed Ult: Deathmark ignores shields applied after a target is marked. For example, if Zed marks a target and Shen ults, the shield still absorbs damage from Zed's basic attacks and other abilities but not the damage from the actual ult. The main reason for this change is to make sure that shields that come too late come in vain, making it more of a certain death technique.
Shen Ult: Instead of having the whole shield plopped down onto an ally, the shield should be channeled (perhaps 40% initially and 20% per second) like the rest of his ult. In addition, his ult should give his ally a single ability spell shield for the first one second or so. The spell shield will help Shen save allies from being cc'ed to death.
One of the other reasons why I want these changes is to foster the Shen / Zed rivalry a little more. Thoughts?
Edit: I do acknowledge other champions are more deserving of buffs and that Shen and Zed probably don't need to be changed at this time, but what I'm mainly going for is more interesting gameplay and champion identity, not balance.