Swellow

You may sacrifice a creature named Taillow
rather than pay this spells mana cost.
Flash,
Flying, first strike, protection from Spirits, haste.
Swellow can block, target and deal damage to
Spirits with protection as though they didn't
have protection.
Swellow gets +3/+0 as long as it has an Aura or
counter attached to or on it. {t}: Swellow deals damage equal to its power
to target creature.