Vori, Eye of Xeceres

Vori enters the battlefield with five slumber
counters on it. Whenever you cast a colourless
spell, remove one slumber counter from Vori.
{c}{c}{c},{t}: Deal X damage to target creature or player, where X is the number of colourless permanents you control.
{x}{c}{c},{t}: Return target colourless card with converted mana cost X or less from your
graveyard to the battlefield.
{t},{c}{c}{c}{c}{c}.