Glad to see a nice buff to cleansing units, giving them some ability to deal with Deathmark before it goes off. I've seen too many losses of the cleanser plus another troop before it could be removed.
I think all statuses should "tick" at the end of the troop's turn that has the status applied. Poison, burn, everything, should have the ability to be countered before they activate, because the implementation of this this game doesn't have any ability to have reactionary cleansers. There are also no buff that can be granted to prevent the application of a status to a troop, like a barrier for statuses.