Cumulative upkeep means it wont stick around forever, but it should be enough to give you a good hand advantage while it does
City of Traitors (3 Rares, 1 Uncommon, 2 Commons) One of the biggest things that this block does is run out a lot of fast mana options
And even without celebration in the equation, playing the Mouse on turn two really increases your chances of double spelling on turn 3 and 4, and thats a pretty good way to win the game A two mana 2/1 with first strike when it attacks is a great aggressive creature in Limited, and this one can make you a couple of 1/1s too
#1: Prismari Artistry (Blue/Red) Power Level: 8/10 | Fun Factor: 9/10 | Upgrade Potential: 9/10 Commander: A spell-slinging Izzet legend that doubles or copies instants and sorceries
He may not look like much, but with the ability to copy any instant or sorcery for the low, low price of a two-power creature, for our money, this anarchic artisan is the best commander in the set by a long way