And just by looking at the pretested decks alone last week, plus the first three days that the set rolled out, it seems that MTG Standard has changed completely
Initiative again was very popular here, and it's win rate was much better this time
First printed in the Magic 13 Core Set (I remember it well), this version of Ajani Goldmane covers all the White bases, supporting cheap creature aggression with counters, a Flying plus Doublestrike buff, and the pice de rsistance: a -8 ability that summons a huge army of 2/2 Cat tokens - devastating when paired with some robust life gain
Likely going to be called the Turbulent lands (though I vote for collision lands as the name), each has two basic land types which makes them tutorable by various cards like the Fetch lands and Farseek
Cards that exile multiple cards at once, delve creatures like Tasigur, the Golden Fang, or persistent graveyard hate pieces like Unlicensed Hearse can maximize value from these mechanics