this is a tricky card....
It have signs of card advantege written over it (you need 2 cards to get rid of it)
But in reality, with its current stats, nobody is going to bother wether the lich is alive.
I'd either alter the stats or (even better!) add an ability that gets out of hand if not dealt with.
In its current version, the unpped one is worse than an Immortal, and the upped one is IMO worse than an abomination...
I would definitely tinker with it tho, as I think both the concept and the actual idea has great potential.