Noxx, The Void Eclipse

Eminence— As long as Noxx, The Void Eclipse is in the command zone or on the battlefield creatures and creatures spells you control are Demons in addition to their other types and have Devoid.

Devoid(This spell is colorless.)

Whenever you cast this spell, search your library for 3 Legendary Dragon creature cards and put 3 time counters on them, whenever you remove the last time counter, cast those spells without paying their mana cost.