Recael, Lord of the Eldrazi

Devoid, Annihilator 3
Other Eldrazi spells you control cost {1} less to
cast and get +1/+1 and gain trample.
{t}: Add {c}{c}. Spend this mana only to cast
Eldrazi spells or activate abilities of Eldrazi.
{x}{x}{g}, {t}: Create X 1/1 Eldrazi Scions creature tokens.