The Spirit of Nyx

Flying, protection from creatures
Pack-tactics—{u}{u}{u}-draw a card for each creature you control named The Spirit of Nyx. Activate only once on each turn.
Whenever The Spirit of Nyx attacks you may pay
{1}{u} any number of times, for each time you pay for this ability create a tapped and attacking copy of The Spirit of Nyx except it isnt a legendary, doesn't have protection from creatures or Pack-tactics and it is an illusion in addition to its other types