I wouldn't run more than 3 pill manipulators; it's a blank ability on the last turn. Winning 3/4 is a difficult strategy to do consistently; you might be better off with Parmabarb instead of Venyle Cr if that's the case. DR doesn't matter if you win 3/4; Parmabarb will actually help you win 3/4. If you commit to winning 3/4, then switch to Parmabarb; otherwise, keep Venyle Cr. Also I'd rather take Tremorh than Hawkins.
Dawn SHOULD be amazing; her ability is based off Morphun and she's only 4*, same damage as Morphun and -1 power +8 attack. I think all of these leader copies will get ELO banned.
You know that those abilities don't work the same as the Leaders, right? Dawn does not have the same ability as Morphun, same with Pericles - Timber and Earl - Eyrik. That said the wording of these abilities, particularly Dawn, could do with a fix.
You're right though that they've all been quite strong so far.
I am probably not the only one who isn't clear how these abilities work; I've only seen Dawn and Earl in ELO and the other players have always played them first round. That's why I thought Earl's ability was like Eyrik's, since it reduced power by 1.