Eldrazi Aggressor

Oracle Text

Devoid (This card has no color.)

Eldrazi Aggressor has haste as long as you control another colorless creature.

Card Rulings

1/22/2016 If it’s the turn Eldrazi Aggressor comes under your control, and it loses haste after being declared as an attacker, it will continue to attack. It won’t be removed from combat.