Re: who in MA has best assassins?
 

Conventional wisdom says that boosters don't affect Mind Duel. Presumably that applies to communions too.

Edit: Although maybe you just meant that if enough S1 mages Mind Duel the S6, eventually he's going to lose.

-Max

Re: who in MA has best assassins?
 

I would also vote for Star Child. Though, of course, Blackhearted Pan looks more scary... but it's also more costly and available later. So Pangaea probably has the best one in mid- to late game, while R'lyeh has the best at the start.