Hearthpwn

From a development point of view, it could very likely be possible to draw suboptimal cards when the mechanics of wishing for a perfect card already exists Zephrys the Great. Personally, I have not used that card as I'm a returning player after 2+ years of inactivity so I'm not really sure on its consistency but given the mechanics that HS believes you can get the optimal card then its merely reversing the logic so that you would get suboptimal cards. 

P.S. I don't believe the game is rigged just giving my train of thought, I'm a casual player having some fun now and then in HS. :)

Quote from STFlow >>

What's the reasoning behind buying the most recent expansion card packs and getting all legendary cards first?

Based on my perspective, I thought it would be best to buy the classic card packs as the expansion card packs would be rotated out while the classic card packs would maintain in rotation therefore the best packs to buy would be the classic packs. Don't get me wrong, I'm not trying to start an argument here, just wanted to know why getting the legendary from each expansion would be the best option. 

 The game no longer has Classic Packs - instead, a Core Set will be given out for free each year for all players. The only packs you can buy for Standard are the expansion packs as well as generic Standard packs which include cards from all current expansions in Standard. As others have pointed out, you are best off purchasing individual packs from each expansion until you open a pack with a Legendary since you are guaranteed a Legendary within the first ten packs you open from each set. Legendary cards are pretty expensive to craft, so getting all your guaranteed Legendaries as soon as possible is the best way to give your collection a bit of a boost - you'll likely end up playing one or two decks based on the Legendaries you open.

TrumpSC is a HS streamer who regularly posts YT content for new players. He's currently doing a F2P run for Stormwind. Here's a link to the most recent episode -

https://www.youtube.com/watch?v=UczLJUXJT_4

GLHF.

Quote from STFlow >>

What's the reasoning behind buying the most recent expansion card packs and getting all legendary cards first?

Based on my perspective, I thought it would be best to buy the classic card packs as the expansion card packs would be rotated out while the classic card packs would maintain in rotation therefore the best packs to buy would be the classic packs. Don't get me wrong, I'm not trying to start an argument here, just wanted to know why getting the legendary from each expansion would be the best option. 

There are no more classic card packs like we used to have them. The Core set contains classic cards and you are free to use them until Blizz changes the Core set next rotation.

Cards available for the Standard mode are from the Core set (free, changes once a year) and the latest 2 years of expansions.

So if you are looking for using cards for the longest period, the last two expansions will be the best (available for another 1.5 years).

Quote from ethanadragon >>

Buy 10 of every standard card pack you will be guaranteed a legendary in he first 10 packs of any expansion 

To be sure you don't "waste" your gold, only buy one at a time, as Ethan said there's a guaranteed legendary in the first 10, but you don't have to buy 10. So start buying one of each expansion untill you find the legendary, then you stop buying for that expansion. Then you can either buy the newest one or Forged in the Barrens, both have very good cards