(http://wiki.dominionstrategy.com/images/c/cb/Royal_Blacksmith.jpg)
alright i finished your royal dil- heyyyy! did you just bring a copper in!?
it is a bigger version of another card that doesn't like coppers. you probably shouldn't buy it like at all until turn 5ish. but when there is a thing that is super good to play a bunch of asap then royal blacksmith is a strong pill. i would say the difficult thing with this and city quarter is less of what effect it has on your deck (trash your coppers please! for this one of course but also cq) but how do you evaluate that debt, even? like, i can choose to buy this card at any time that i want as long as i don't have any of those dang debts. and there's a weird curve of how good it is by how much money you have—at $7 and $8 (with no buy) it is probably one of the best options but then at $5 and $6 you're sacrificing a particularly good buy this turn and also taking away a stinky amount of money from next turn (you are p likely to end up with like $1 or $2 next turn) buuutt theeennn at $4 it's nice because you have a nice likelihood of getting exactly $0 next turn which is perhaps counter-intuitively a convenient amount of money to have. and there's always the option to buy it at $0, like if you bought something else in addition. and 8 debt is 8 debt, and i'd rather have my deck improve sooner than later, but it seems scary for some reason. and of course the strengths at each cost that i described vary depending on how much money you can make each turn.
-do all monarchies ultimately fail because of their willful ignorance of the usefulness of coppers?
-how often do you buy it at $0? is there some reason that one shouldn't pick up a royal blacksmith or city quarter when one needs it at $0, other than, wow, 8 debt. how am i gonna dig myself out of that hole.
-is this better than embassy or something?