On play, [Mr.1(Daz.Bonez)] can rest a Character that has had its cost reduced to 0 by your Leader's effect and attack it immediately
Thats nice, but it also puts a +1/+1 counter on any nontoken creatures that enter the battlefield under your control, and lets you draw a card when you do so
Entire Commander decks are built around these 50/50 chances, and the best coin-flip cards are usually seen played together in the same decks
: Put a loyalty counter on target Jace planeswalker
Sephiroth has a number of cards between this set, the commander decks, and the starter decks, but I think this one is undoubtedly the most powerful
Shifting Grift Conditional Mind Control On the other end of the spectrum, blue appears to have the worst Spree cards from Outlaws in Thunder Junction