I was just reading through the March of the Damned spoilers list and thought of a possible combination using Countess Iseara to stack power on the Great Unclean One. I'm sure there are other applications but I'm not familiar with enough of the cards. I've looked through the rules to make sure that it would work and unless I'm missing something it should work.
In play are Warpstone Excavation, Countess Iseara, and the Great Unclean One. You have Veteran Sellswords in hand.
During your capital phase:
1. Play Veteran Sellswords (cost 0) for free to the zone with Warpstone Excavation, corrupting them.
2. Sacrifice Sellswords to add one power to Great Unclean One.
3. Spend one resource with Iseara to grant Necromancy to Veteran Sellswords.
4. Repeat until you are out of resources
There is an additional possibility depending on the game mechanics but some one will have to confirm this. If Necromancy remains in effect for the Sellswords even after they have been sacrificed for the second time, the player only needs to use Iseara once to apply it. If this is the case then you can cyclically stack infinite power onto Great Unclean One.
Thoughts?