It contains five preconstructed decks (one for each color) plus accessories needed to play the game (spindown life counters, life counter platforms, +1/+1 counters, and five reference cards)
Honorable Mention: Yuriko, the Tigers Shadow While neither a rat nor directly synergistic with rats, Yuriko, the Tiger's Shadow does have commander ninjutsu, and theyre both one of the best Dimir commanders, and one of the best aggro commanders
It's very defensive in nature and stronger in grind games, attempting to gather as many resources as it can for a big attack at the end, mainly through the trap "Melffy Playhouse", which can return most of your opponent's field to the hand and increase your Xyz Monsters' ATK to ludicrous levels for a final OTK
For someone new to the game or intending to play with a younger audience this is a fabulous way of introducing the game with minimal setup, rules teach and investment
This is where a lot of the value in the set resides, with cards like Enduring Innocence, Meathook Massacre II, Kaito, Bane of Nightmares, and all of the Verge lands (Gloomlake Verge, Floodfarm Verge, Blazemire Verge, Thornspire Verge, and Hushwood Verge)