Cemetery Prowler

Vigilance
Whenever Cemetery Prowler enters or attacks, exile a card from a graveyard.
Spells you cast cost less to cast for each card type they share with cards exiled with Cemetery Prowler.

Ghostly Prison

Creatures can’t attack you unless their controller pays for each creature they control that’s attacking you.

Cemetery Prowler

Vigilance
Whenever Cemetery Prowler enters or attacks, exile a card from a graveyard.
Spells you cast cost less to cast for each card type they share with cards exiled with Cemetery Prowler.

Heron of Hope

Flying
If you would gain life, you gain that much life plus 1 instead.
: Heron of Hope gains lifelink until end of turn.

Cemetery Prowler

Vigilance
Whenever Cemetery Prowler enters or attacks, exile a card from a graveyard.
Spells you cast cost less to cast for each card type they share with cards exiled with Cemetery Prowler.

Umbris, Fear Manifest

Umbris, Fear Manifest gets +1/+1 for each card your opponents own in exile.
Whenever Umbris or another Nightmare or Horror you control enters, target opponent exiles cards from the top of their library until they exile a land card.

Umbris, Fear Manifest

Umbris, Fear Manifest gets +1/+1 for each card your opponents own in exile.
Whenever Umbris or another Nightmare or Horror you control enters, target opponent exiles cards from the top of their library until they exile a land card.

Hidden Strings

You may tap or untap target permanent, then you may tap or untap another target permanent.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Ethereal Armor

Enchant creature
Enchanted creature gets +1/+1 for each enchantment you control and has first strike.

Sarkhan’s Scorn

Sarkhan’s Scorn deals damage equal to the number of turns you have begun to target creature or planeswalker.

Blur Sliver

Sliver creatures you control have haste. (They can attack and as soon as they come under your control.)

Freyalise, Skyshroud Partisan

+1: Untap up to one target Elf. That Elf and a random Elf creature card in your hand perpetually get +1/+1.
−1: Seek an Elf card.
−6: Conjure a card named Regal Force onto the battlefield.

Ochre Jelly

Trample
Ochre Jelly enters with X +1/+1 counters on it.
Split — When Ochre Jelly dies, if it had two or more +1/+1 counters on it, create a token that’s a copy of it at the beginning of the next end step. The token enters with half that many +1/+1 counters on it, rounded down.

Mind Flayer

Dominate Monster — When Mind Flayer enters, gain control of target creature for as long as you control Mind Flayer.

Mind Flayer

Dominate Monster — When Mind Flayer enters, gain control of target creature for as long as you control Mind Flayer.

Theater of Horrors

At the beginning of your upkeep, exile the top card of your library.
During your turn, if an opponent lost life this turn, you may play lands and cast spells from among cards exiled with Theater of Horrors.
: Theater of Horrors deals 1 damage to target opponent or planeswalker.

Ochre Jelly

Trample
Ochre Jelly enters with X +1/+1 counters on it.
Split — When Ochre Jelly dies, if it had two or more +1/+1 counters on it, create a token that’s a copy of it at the beginning of the next end step. The token enters with half that many +1/+1 counters on it, rounded down.

Ochre Jelly

Trample
Ochre Jelly enters with X +1/+1 counters on it.
Split — When Ochre Jelly dies, if it had two or more +1/+1 counters on it, create a token that’s a copy of it at the beginning of the next end step. The token enters with half that many +1/+1 counters on it, rounded down.

A-Ochre Jelly

Trample
Ward
Ochre Jelly enters with X +1/+1 counters on it.
Split — When Ochre Jelly dies, if it had two or more +1/+1 counters on it, create a token that’s a copy of it at the beginning of the next end step. The token enters with half that many +1/+1 counters on it, rounded down.

Ochre Jelly

Trample
Ochre Jelly enters with X +1/+1 counters on it.
Split — When Ochre Jelly dies, if it had two or more +1/+1 counters on it, create a token that’s a copy of it at the beginning of the next end step. The token enters with half that many +1/+1 counters on it, rounded down.

Outpost Siege

As Outpost Siege enters, choose Khans or Dragons.
• Khans — At the beginning of your upkeep, exile the top card of your library. Until end of turn, you may play that card.
• Dragons — Whenever a creature you control leaves the battlefield, Outpost Siege deals 1 damage to any target.