Trol de los sepulcros

Text:

Arrolla.
Al comienzo de tu mantenimiento, exilia una carta de criatura de tu cementerio. Si lo haces, pon un contador +1/+1 sobre el Trol de los sepulcros. Si no, sacrifícalo.
, descartar una carta de criatura: Pon un contador +1/+1 sobre el Trol de los sepulcros.

Rulings:

• 10/5/2018 You can’t choose not to exile a creature card from your graveyard if you have one to exile.
• 10/5/2018 You can activate Charnel Troll’s last ability during your upkeep before its triggered ability resolves.
• 10/5/2018 Because your upkeep step is after your untap step, your lands will be untapped to help you activate Charnel Troll’s last ability during your upkeep. However, because your upkeep step is before your draw step, you won’t have drawn a card for the turn yet.