Will, Dracomancer of Undeath

Dragon spells you cast cost {1} less to cast.
{t},{b}{r}{2}: Put target Dragon creature card from
your graveyard onto the battlefield, it gains haste
and is a Spirit in addition to it's other types. Sacrifice it at the beginning of your next end step.
"A dragon always finds it's way to revenge. And that
way just so happens to be me."