[TigerBlood]

I ran some tests and it appears they still remain mercenaries, which reinforces what Valerius stated.

I'll have to wait and see what happens with the Lychanthropos amulet, but twiceborn and transformation keep them as mercs.

The only other test I can run with twiceborn is to try and get the unit killed on the same turn as the contract expires, but it does not look promising.

I have not tested the Pebble Skin Suit. While the artifact has a different effect from the Lyc. amulet, I figure they are similar enough in function that the results will be similar. If the amulet yields a positive result, I'll test the suit.