Then when they do you can exile and then cast it with any mana, not just their color - great stuff for the winning
The two decks varied in their specific choice of disruption suites, with Musasabi opting for more traditional countermagic over This Town Aint Big Enough, but the core is the same
Id say at least three or four, which absolutely isnt a trivial thing to accomplish
Mardu Pyromancer relies on its graveyard to cast Bedlam Reveler and sometimes Gurmag Angler and uses it as a value engine with Faithless Looting, Kolaghan's Command, and Lingering Souls
Dungeon Map enters the battlefield untapped, also taps for mana, and activates for three mana (and thankfully, no tapped legendary creatures)
You can pair it with the new Niv-Mizzet or Rakdos, Lord of Riots for some truly disgusting value swings