2024-04-12

Hollow Marauder’s first ability doesn’t change its mana value, which is always 7.

2024-04-12

When Hollow Marauder’s triggered ability resolves, the next target opponent in turn order (or, if it’s a target opponent’s turn, that opponent) chooses a card in hand without revealing it, then each other target opponent in turn order (if any) does the same. All chosen cards are then discarded at the same time.