For those unfamiliar, the term aggro is short for aggressive, and in this case, refers to a strategy that seeks to put lots of low-cost cards into play and gain enough of an advantage to win before the opponent can stabilize
With card dividers and a flat white front that allows for clear, concise labeling (my favorite is to put the set icon on the front), its difficult to find something that works better
Theyre just vanillas, but Winnie lets ramp decks quest and ramp for a pretty low cost
In many ways its like a powerful laser beam in a sci-fi film: slow to charge up, but absolutely devastating when it finally hits
If you have two [Hardened Scales[/el] effects or a single Hydras Growth, you can turn this into an extra two cards each turn
You have to get rid of a second card to pay the cost, but the tempo gain and protection offered in that exchange are much greater than the loss suffered by pitching some other blue or green card