Lock and load doesn't seem too bad since it looks like more of a control card than face card.
Remember when people were going bonkers over feign death? It is kinda like that in a way. I'm not saying it won't find a use, but we're talking about a 2 mana card that only gives cards if you play spells. If you only get 1 card out of it, it was completely useless because you could have just included a more dependable card on it. If you get 2 cards off it, then you're at least gaining some kind of advantage out of it. Spending 2 mana to get 2 cards would be better than arcane intellect, if those cards were always good cards but sometimes they'll be bad ones. Getting 3 cards seems like the range you really want to get off this card. Hunter's mark, UTH, + secret + this = 7 mana.
So I am guessing it'll be a pretty dead card in the first 6-7 turns but I guess coin gives a nice bonus. Probably very poor in face hunter at least. This assessment can always change if they add more cards that work well with it of course. I am liking the whole kodo dude with hero power, cause I am assuming the kodo is a beast but is the base card that summons the kodo a beast?
Just got a chance to look at new stuff. So Coldarra Drake+ Maiden of Lake could make Majordommo playable... naaaah. it's still terrible.
I assume you mean 1 mana, infinitely useable, ragnaros fireballs? We'll probably see a video of that fast.