If a Warpstone Excavation (Your units enter this zone corrupted) and a Beastman Shaman (Action: When a Chaos unit you control is corrupted draw a card) is in play: do you get to draw a card from the Beastman Shaman when a Chaos unit enter play in the zone that has a Warpstone Excavation?

thanks

No.

This is in the FAQ and the Rules Summary.

From the faq :

Q: If I control Fellblade (CC 100) and my opponent plays a unit into a zone containing a Warpstone Excavation (CS 116), is the unit considered to have been corrupted, allowing me to put a resource token on Fellblade?
A: No. A unit that enters play in a particular state is not considered to have changed states. So in this case there is nothing being corrupted to trigger Fellblade. However, if a unit already in play moves to the zone that contains Warpstone Excavation, then it is considered to have been corrupted and a resource token would be placed on Fellblade.

Thank you both for the help!