Lumina, Bane of the Ancients

Vigilance, reach, dragon slayer (If this creature would deal damage to a Dragon creature, it deals
double that damage to that creature instead.)
Imprint - If a Dragon dealt damage by Lumina, Bane of the Ancients dies, you may exile it
instead of putting it anywhere else.
{2}{r}{g}{w}, {t}: Create a token that's a copy of any Dragon card exiled with Lumina.