Well said @SamHiggy outside of the top 8 there was a lot of variation but this is to be expected. Emrakul broke standard, stopped interactivity, was nearly un-killable and banned as a result. Whilst people complained about Heart of Kiran this weekend, they clearly have short term memory loss. Kiran is a great card but it was there to halt the progression of the Saheeli combo.
For anyone reading this with no experience in Magic i'll try to explain the best way I can. The Saheeli combo is below. It's a fairly simple 2-way infinite loop, something not present (as far as i'm aware) in HS to date. When Saheeli enters the battlefield she has an ability (-2) that creates a copy of a creature and give it haste (allow it to attack immediately). Felidar Guardian enters and allows you to "flicker" (remove a card on the field from the game and immediately return it) a card from the field. The idea is that you create a token of felider guardian which then enters the field and flickers Saheeli who can then repeat her ability because she is now a new instance of the card.
The result is that an infinite number of 1/4 cats can be created and attack all at once.
This combo was considered "abusive" and people said it "couldn't be beaten". Standard was ruined they said. So the pro's developed a deck based on a technique called "going under" which means that they created a high value aggro deck. This strat saw a lot of play last week and saw a card called Heart of Kiran being played.
This card is fairly self explanatory. It's a 4/4 for 2 mana with flying (evasion. can't be intercepted by ground creatures) and vigilance (doesn't tap when it attacks, means it can block on the opponents turn and attack on yours - nothing like this in HS) meaning it's incredible value lets you get board presence and hold up instant spells to interrupt the Saheeli combo when they finally manage to play it.
These are the cards people were calling for a ban on. I guarantee you next week we will see new decks to counteract vehicles decks containing Kiran. That's the way a meta works, it's the way a healthy meta evolves and Higgy agrees.
The final card that Higgy talks about being a stand out pick is Walking Ballista. This card costs XX meaning that both X values must be identical, it then enters with X +1/+1 counters on it. So if you want it to enter as a 3/3 you must pay 6 mana in total. It then has 2 abilities, 1 to remove a counter and deal 1 targeted damage and one to pay 4 of any colour mana to add a counter.
This of course makes for an incredibly flexible card being able to be played early or late. Grow bigger or shrink and distribute damage. This card will stay in the standard meta for its entirety I believe.