Enchant creature
Enchanted creature has flying.
Aura swap (: Exchange this Aura with an Aura card in your hand.)

Each nonland card in your graveyard has escape. The escape cost is equal to the card's mana cost plus exile three other cards from your graveyard. (You may cast cards from your graveyard for their escape cost.)
At the beginning of the end step, sacrifice this enchantment.

At the beginning of each opponent's upkeep, this creature deals X damage to that player, where X is the number of cards in their hand minus 4.

Tap an untapped Wizard you control: Draw a card.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Spells you cast cost less to cast for each card with the same name as that spell in your graveyard.

(: Add .)

First strike
Survey the Realm — Whenever Black Panther or another creature you control enters, put a +1/+1 counter on target land you control.
Mine Vibranium — : Move all +1/+1 counters from target land you control onto target creature. If one or more +1/+1 counters are moved this way, you gain that much life and draw a card.

(: Add or .)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Flying
This creature can't block.
Whenever this creature deals combat damage to a player, they get that many rad counters.
Whenever an opponent mills a nonland card, if this creature is in your graveyard, you may return it to your hand.

Enchant creature
When this Aura enters, draw a card.
Enchanted creature has protection from creatures.

Whenever The Sprinkler of Stardust attacks, look at the top six cards of your library. You may put an instant or sorcery card from among them onto the battlefield tapped and attacking. It becomes a 2/2 creature with "Whenever this deals combat damage to an opponent, cast a copy of this card." (The 2/2 creature stays on the battlefield.) Put the rest of the cards on the bottom of your library in a random order.

Changeling (This card is every creature type.)
: Target creature gains all creature types until end of turn.
: Target creature loses all creature types until end of turn.

Target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 2 life.

Whenever The Sprinkler of Stardust attacks, look at the top six cards of your library. You may put an instant or sorcery card from among them onto the battlefield tapped and attacking. It becomes a 2/2 creature with "Whenever this deals combat damage to an opponent, cast a copy of this card." (The 2/2 creature stays on the battlefield.) Put the rest of the cards on the bottom of your library in a random order.

Menace (This creature can't be blocked except by two or more creatures.)
When Black Widow enters, mill three cards. (Put the top three cards of your library into your graveyard.)
Whenever Black Widow deals combat damage to a player, each opponent loses life equal to the number of creature cards in your graveyard.

Whenever a creature with power 4 or greater enters, its controller draws a card.

Any number of target players each discard a number of cards equal to the greatest mana value among permanents you control.

Shroud (This creature can't be the target of spells or abilities.)
Multani's power and toughness are each equal to the total number of cards in all players' hands.

Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life.)
At the beginning of each of your postcombat main phases, add for each 1 life your opponents have lost this turn.