Senyoku, Herald of Fire

Flying, first strike, haste
Whenever a dragon you control attacks, You may
pay {1}{r}{w}. If you do, create a 3/3 white and red Dragon creature token with flying.
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"At first we heard only one terrible voice, but soon
after the sky became covered by dragons as Senyoku
and his brood descended upon our lands."-Shu Yun,
the Silent Tempest