The council of Lightfeather

When The council of Lightfeather enters the battlefield add {c}{c} to your mana pool.
{t} sacrifice all creatures you control, for each sacrifice bird creature that isn't a spirit, create
a 3/1 white bird spirit creature with
haste and flying
{8}{r/w}{r/w} all bird creatures get hexproof
and become unblockable until end of turn
They're gone....