The Oracle Engine

Play with the top card of your library revealed.
As long as the top card of your library is a
creature, creatures you control are indestructible.
The same is true for artifacts and enchantments.
At the beginning of your endstep, scry 3, then
choose a creature type. Create a 1/1 White
artifact creature token of that type, then put a
+1/+1 counter on each creature you control of
that type.