
Norman Osborn | Legendary Creature | Human Scientist Villain | Norman Osborn can't be blocked.
Whenever Norman Osborn deals combat damage to a player, he connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)
{1}{U}{B}{R}: Transform Norman Osborn. Activate only as a sorcery. | Nicholas Gregory

Alien Symbiosis | Enchantment | Aura | Enchant creature
Enchanted creature gets +1/+1, has menace, and is a Symbiote in addition to its other types.
You may cast this card from your graveyard by discarding a card in addition to paying its other costs. | Helge C. Balzer

Common Crook | Creature | Human Rogue Villain | When this creature dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") | Gil Martimiano

Morlun, Devourer of Spiders | Legendary Creature | Vampire Villain | Lifelink
Morlun enters with X +1/+1 counters on him.
When Morlun enters, he deals X damage to target opponent. | Loïc Canavaggia

Merciless Enforcers | Creature | Human Mercenary Villain | Lifelink
{3}{B}: This creature deals 1 damage to each opponent. | Cristi Balanescu

Scorpion's Sting | Instant | | Target creature gets -3/-3 until end of turn. | Inkognit

The Soul Stone | Legendary Artifact | Infinity Stone | Indestructible
{T}: Add {B}.
{6}{B}, {T}, Exile a creature you control: Harness The Soul Stone. (Once harnessed, its ∞ ability is active.)
∞ — At the beginning of your upkeep, return target creature card from your graveyard to the battlefield. | Adam Paquette

Mob Lookout | Creature | Human Rogue Villain | When this creature enters, target creature you control connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.) | Francisco Badilla

Scarlet Spider, Kaine | Legendary Creature | Spider Human Hero | Menace (This creature can't be blocked except by two or more creatures.)
When Scarlet Spider enters, you may discard a card. If you do, put a +1/+1 counter on him.
Mayhem {B/R} (You may cast this card from your graveyard for {B/R} if you discarded it this turn. Timing rules still apply.) | Alexander Mokhov

Eerie Gravestone | Artifact | | When this artifact enters, draw a card.
{1}{B}, Sacrifice this artifact: Mill four cards. You may put a creature card from among them into your hand. (To mill four cards, put the top four cards of your library into your graveyard.) | Francisco Badilla