Umbris, Fear Manifest gets +1/+1 for each card your opponents own in exile.
Whenever Umbris or another Nightmare or Horror enters the battlefield under your control, target opponent exiles cards from the top of their library until they exile a land card.
Near Mint - $10.400
Lightly Played - $8.400
Moderately Played - $7.300
Heavily Played - $6.300
Damaged - $5.200
Near Mint Spanish - $10.400
Lightly Played Spanish - $8.400
Moderately Played Spanish - $7.300
Heavily Played Spanish - $6.300
Damaged Spanish - $5.200