Comet Storm is a great way to wipe the board while also dealing great damage to your opponents' faces
A sweepers goal is to remove as many of your opponents resources as possible with one card, and no card does it better than Balance
Last but not least, Yuriko, the Tiger's Shadow has a special version of the ninjutsu ability: Commander ninjutsu
(Players dealt combat damage by that creature also get a poison counter.) Giving an attacking creature flying after it has become blocked will not cause it to become unblocked, even if the blocking creature can't normally block creatures with flying
In some ways, this is probably a good thing because it means Wal-Mart and Target are less of a threat to local game stores, which will almost certainly have better prices than the competing big-box store
And also, you can change the states of characters