Thallya, She Who Grows

At the beginning of your upkeep, you may
tap three untapped creatures you control.
If you do, Thallya gains hexproof until the
end of the turn.
{g}{g}{g}, {t}:Put a +1/+1 counter on Thallya.
The citizens loved her, and so they decided to
feed her the corpses of the dead.