Storm Fleet Aerialist
Oracle Text
Flying
Raid — Storm Fleet Aerialist enters the battlefield with a +1/+1 counter on it if you attacked with a creature this turn.
Card Rulings
1/19/2018 Raid abilities care only that you attacked with a creature. It doesn’t matter how many creatures you attacked with, or which opponent or planeswalker controlled by an opponent those creatures attacked.
1/19/2018 Raid abilities evaluate the entire turn to see if you attacked with a creature. That creature doesn’t have to still be on the battlefield. Similarly, the player or planeswalker it attacked doesn’t have to still be in the game or on the battlefield, respectively.
Also, Favourable Winds is back? This is going to be a fun Standard.