The Blood Moon Rises...

All Creatures killed within the last 3 turns, return
them to the battlefield under your control.
Do the same on every upkeep from now on.
Creatures returned this way, do not suffer
from summoning sickness.
Any creature tokens killed wihtin the last 3 turns,
also return and double the amount of them.
{t}, {4} Create a copy of each creature with cmc of
3 or lower and put them onto the battlefield
under your control.