Eldrazi, Overlord

Eminence:Eldrazi Spells cost{5}less to cast. Devoid(This card has no color)If Eldrazi,Overlord would die,instead exile it with
four Netherworld counters on it.
At the beginning of your upkeep, if Eldrazi,Overlord is exiled with an Netherworld counter on it, remove an Netherworld counter from it. Then if Eldrazi,Overlord has no Netherworld counters on it, return it to the battlefield.