Kain, Lord of Nosgoth

Haste, Double Strike, Life link
Partner (partner with Raziel)
If Kain, Lord of Nosgoth enters the
Battlefield, return Raziel to the Command Zone.
{t}{x}{b}{b} Return target X artifact(s) or
vampire(s) from the graveyards to the battlefield
under your control, where X equals the colorless
mana spent to use this ability.