Alastor, the Radio Demon

Alastor's toughness is equal to the total of Devils,
Demons and Sinners on the battlefield.
{u}{u}{r}{r},{t}: Search your library for a creature
of total mana cost equal to Alastor's power and
place it on the battlefield. The creature is now a
Sinner in addition to its other types and has
Indestructible until Alastor, the Radio
Demon leaves the battlefield.
"Salutations! Good to be back on the air!"