Garruk's Harbinger
Creature — Beast
Hexproof from black
Whenever this creature deals combat damage to a player or planeswalker, look at that many cards from the top of your library. You may reveal a creature card or Garruk planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Lie Setiawan
Core Set 2021 Promos (PM21)
• #185pRulings
If Garruk's Harbinger deals damage to a planeswalker greater than their loyalty or to a player greater than their life total, you look at a number of cards equal to that full amount of damage dealt, not just that loyalty or life total.
(wotc • 2020-06-23)
Hexproof from black means that Garruk's Harbinger can't be the target of black spells your opponents control or abilities your opponents control of black sources.
(wotc • 2020-06-23)
Rulings
If Garruk's Harbinger deals damage to a planeswalker greater than their loyalty or to a player greater than their life total, you look at a number of cards equal to that full amount of damage dealt, not just that loyalty or life total.
(wotc • 2020-06-23)
Hexproof from black means that Garruk's Harbinger can't be the target of black spells your opponents control or abilities your opponents control of black sources.
(wotc • 2020-06-23)