Doesn't seem to be much of an advantage anymore with these upcoming changes because season rewards are built up based on full amount of rshares during the season. So whether those cards are earning rshares on account 1 vs account 2 I don't see the difference. Unless of course you overplay and your ECR goes way way down... but i assume bots will just configure so they don't play as much and keep their ecr at an optimal rate. Therefore i don't really see the reason for transfering cards assuming you manage your ECR efficiently.