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 - $10.300
Lightly Played - $8.200
Moderately Played - $7.200
Heavily Played - $6.200
Damaged - $5.200
Near Mint Spanish - $10.300
Lightly Played Spanish - $8.200
Moderately Played Spanish - $7.200
Heavily Played Spanish - $6.200
Damaged Spanish - $5.200