Dragon Sun Crusader

First strike, lifelink
Whenever Dragon Sun Crusader attacks,
you may pay {r/w}{r/w}. If you do, call the
Dragonarmies. This ability only triggers if you
control a Dragon. (As you call the Dragonarmies,
you get an emblem named The Dragonarmies. Then
your emblem triggers its next ability.)
"The dragons give me my strength, and I give them
mine. That's the "secret" to victory."