There are no refunds, guarantees, or warranties implied
The payoff is a way to remove blockers, which can be pretty nice, especially if you want to connect to generate more energy
If Curie is no longer on the battlefield when its first ability resolves, use its base power as it last existed on the battlefield to determine how many cards to draw
You need to jam three combat tricks at once and if at least one of those grants double strike, this could be a one-hit KO
For more details, you can check the official article but for now, I want to get into looking at some of these new cards
You have to mulligan more than most with a deck like this as you cannot keep hands with too much top end nor can you keep one that is land light (assuming no Land Tax to bail you out)