
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

Agent Venom | Legendary Creature | Symbiote Soldier Hero | Flash
Menace
Whenever another nontoken creature you control dies, you draw a card and lose 1 life. | Diana Franco

Black Cat, Cunning Thief | Legendary Creature | Human Rogue Villain | When Black Cat enters, look at the top nine cards of target opponent's library, exile two of them face down, then put the rest on the bottom of their library in a random order. You may play the exiled cards for as long as they remain exiled. Mana of any type can be spent to cast spells this way. | Yohann Schepacz

The Spot, Living Portal | Legendary Creature | Human Scientist Villain | When The Spot enters, exile up to one target nonland permanent and up to one target nonland permanent card from a graveyard.
When The Spot dies, put him on the bottom of his owner's library. If you do, return the exiled cards to their owners' hands. | Andreas Zafiratos

Superior Spider-Man | Legendary Creature | Spider Human Hero | Mind Swap — You may have Superior Spider-Man enter as a copy of any creature card in a graveyard, except his name is Superior Spider-Man and he's a 4/4 Spider Human Hero in addition to his other types. When you do, exile that card. | Claudio Pozas

Symbiote Spider-Man | Legendary Creature | Symbiote Spider Hero | Whenever this creature deals combat damage to a player, look at that many cards from the top of your library. Put one of them into your hand and the rest into your graveyard.
Find New Host — {2}{U/B}, Exile this card from your graveyard: Put a +1/+1 counter on target creature you control. It gains this card's other abilities. Activate only as a sorcery. | Igor Krstic

Carnage, Crimson Chaos | Legendary Creature | Symbiote Villain | Trample
When Carnage enters, return target creature card with mana value 3 or less from your graveyard to the battlefield. It gains "This creature attacks each combat if able" and "When this creature deals combat damage to a player, sacrifice it."
Mayhem {B}{R} | Diana Franco

Ultimate Green Goblin | Legendary Creature | Goblin Villain | At the beginning of your upkeep, discard a card, then create a Treasure token.
Mayhem {2}{B/R} (You may cast this card from your graveyard for {2}{B/R} if you discarded it this turn. Timing rules still apply.) | Caio Cacau

Kraven the Hunter | Legendary Creature | Human Warrior Villain | Trample
Whenever a creature an opponent controls with the greatest power among creatures that player controls dies, draw a card and put a +1/+1 counter on Kraven the Hunter. | Diego Gisbert