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
This is a golden opportunity to own a highly coveted, top collector's item that will be the highlight of any Pokmon collection
Giving all of your permanents hexproof and indestructible is absolutely incredible at this cost
Radiant, Serra Archangel & Akroma, Vision of Ixidor - Give Radiant Protection, and Akroma will make her a 9/7 flyer
It's ultimately much more fair though, since it's tied to a tap ability and only targets legendary creatures, unlike Breach, which let the reigns loose with virtually no restrictions at all
To help us with this process, we always clump creatures together in the first part of the numbering