Sauron, The Great Eye

Hexproof
Black and/or Red creature spells cost {1} less
{1}{b}, sacrifice a human: create a Black Rider, a
4/4 spirit creature token with "fear" and
"{t}, tap 7 untapped Black Riders: Create The
One Ring, a legendary artifact token with 'indestructible' 'Equipped creature has hexproof'
and equip {1}"
When Sauron, The Great Eye becomes equipped
with The One Ring, transform