Cassiel, SkySight Musketeer

Flying Vigilance
Cassiel, SkySight Musketeer power and toughness is equal to X
Cassiel, SkySight Musketeer Power Has +1/+1 for each duelist on the battlefield
{w}{w}{x}{t} create X 2/2 White angel duelists for you and your opponents where X is the amount of Duelist on the battlefield