Exploit
When this creature exploits a creature, look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard.

Protection from red
Whenever you cast your first spell during each opponent's turn, draw three cards, then put two cards from your hand on top of your library in any order.

This creature can't be blocked as long as it's attacking alone.
Disturb

When Gwyndala enters, create a colorless Equipment artifact token named Neuroflux Heirloom with "Equipped creature gets +1/+1" and equip . Attach it to Gwyndala.
: Each Equipment token you control becomes a copy of target Equipment you control until end of turn.

Level up

Flying
: Return target Aura card from your graveyard to the battlefield attached to Hakim. Activate only during your upkeep and only if Hakim isn't enchanted.
, : Destroy all Auras attached to Hakim.

Flying
Whenever Hakka deals combat damage to a player, return it to its owner's hand, then scry 2.

Partner with Pako, Arcane Retriever
You may play lands and cast noncreature spells from among cards you exiled that have fetch counters on them, and you may spend mana as though it were mana of any color to cast those spells.

Whenever this creature or another Ally you control enters, target player mills X cards, where X is the number of Allies you control.

When this creature enters, you may return target card with awaken from your graveyard to your hand.
Land creatures you control have flying.

Level up

When this creature enters, each player mills two cards. Then you may put an instant, sorcery, or battle card from your graveyard on top of your library.

This creature can't attack unless defending player controls an Island.

Flying
Whenever you cast a spell, return up to one target nonland permanent an opponent controls with mana value less than or equal to that spell's mana value to its owner's hand.

When Hapatra enters, for each opponent, tap up to one target creature that player controls. Put a stun counter on each of those creatures.
: Untap target creature.

Sacrifice this creature: Draw a card, then discard a card.

Vigilance
When Happy Hogan enters, the owner of target creature an opponent controls puts it into their library second from the top or on the bottom.

Nonbasic lands are Islands.

You may cast this spell as though it had flash if you pay more to cast it.
When this creature enters, you may return target tapped creature an opponent controls to its owner's hand.

Islandwalk
This creature can't attack unless there are five or more Islands on the battlefield.

Flying
: Target creature gains flying until end of turn.

, Tap two untapped creatures you control: This creature becomes prepared.

Flying
When this creature enters, tap target permanent.
: Draw a card, then discard a card.

Vigilance
This creature can't be blocked as long as you've cast an instant or sorcery spell this turn.

, , Exile a creature card from your graveyard: Create a 2/2 black Zombie creature token, then put a +1/+1 counter on each Zombie creature you control.

Whenever this creature attacks, return another creature you control to its owner's hand.

This creature can't be blocked as long as defending player controls an untapped land.

As an additional cost to cast this spell, exile a creature card from your graveyard.
This creature enters tapped.

Landfall — Whenever a land you control enters, target player mills three cards.