Bow of Light

Attacking creatures you control have deathtouch.
{1}{g}, {t}: Choose one — Put a +1/+1 counter on target creature, or Bow of Light deals 2 damage
to target creature with flying; or you gain 3 life;
or put up to four target cards from your
graveyard on the bottom of your library in any
order.
—
When wielded by the Hero, it fires arrows of pure light strong enough to oppose the Calamity.