Fearow

You may sacrifice a creature named Spearow
rather than pay this spells mana cost.
Flying, protection from Spirits.
Tribute 2 (As this creature enters the battlefield, an opponent of your choice may place 2 +1/+1 counters on it.)
When Fearow enters the battlefield, if tribute wasn't paid, target player discards all cards in their hand.
{1}: Fearow gets +1/-1 until end of turn.
Sacrifice an Insect: Regenerate Fearow.