Assume I have both a Firedrinker Satyr and a Daring Thief out in play. My Daring Thief untaps and I swap ownership of the Firedrinker with another creature of theirs. If I then proceed to Lightning Strike the Firedrinker Satyr (which is now on their side) - who receives that damage that the Satyr deals?
The key line that is confusing me is:
Whenever Firedrinker Satyr is dealt damage, it deals that much damage to you.
The main question appears to be whether "you" woud refer to the owner or the controller. My assumption is that it is the controller, as the owner is rarely needed or used - but that's not based on much but experience.