However, that is 49 blocks, and maybe you don't want to make that many. Six rows by six, or 36 squares, with three inch sashes and a three inch sashed border would give you more than enough for your queen size comforter, 93 X 93.
5.) Whether or not the character(s) are good to play as is irrelevant. I have come to the assumption that the strongest characters are Super Sayain 4 Goku, Vegeta, and Gogeta, Omega, Nuova, and Eis Shenron, Super Saiyan God Goku, Whis, Beerus, and Super 17.
Despite his pride, Vegeta, to save his only son, agrees to the fusion. Together, Goku and Vegeta fuse to become the fighter Vegito. Vegito is incredibly powerful upon his original appearance, beating Buu easily. Once Buu decides to use his absolute power, Vegito turns into a Super Saiyan. Super Vegito is statistically the most powerful character in the Dragon Ball Z storyline.