Logical Apotheosis

Devoid
As an additional cost to cast Logical Apotheosis, exile a Legendary creature you control.
{1}{w}: Sacrifice any number of tokens to create Amass 1 that amount of times.
{2}{u}: Discard a non-land card to draw a card.
{3}{b}: Destroy all creatures with power 3 or less.
{2}{r}: Creatures you control gain haste until end of turn.
{1}{g}: Proliferate.