The Eye of Sauron

The eye of Sauron costs {2} less to cast for each
Ring Wraith creature you control.
When the Eye of Sauron enters the battlefield
you become the ring bearer.
{t}: Tap target creature and put a stun counter
on it.
{2}{b/r}: Tap a Ring Wraith creature you control.
Create a fellbeast creature token. It has haste
until the end of turn. Activate this ability only
once each turn.