Plot bunnies and ideas i want to get out and about

So, i play Magic the Gathering, and i had a stray thought, what would Error be like in Magic the gathering, as a card to be specific. So, i began thinking, and then i thought about ink, and Dream, And Nightmare, and Swap, and Seraphim from the Thought, and Player... so, ima put what i think each sans that i can think of would be like. I will Update this as i think of how they would work as cards, also, these cards would be in my opinion WAY too overpowered for MTG

Error: 

Cost to summon: 4 red, 4 black, 4 colorless

Legendary Creature, Skeleton God of Destruction

Power/Toughness: 10/10.

Special abilities(If applicable); Reach .Cost 3 red, 3 black, X colorless, Tap this card, destroy X target permeants, if target permeant is a creature card that creature must have lower toughness and power than Error.

Flavor Text: Error, The Destroyer of Universes, whenever he visits a world, it is left in ruin by the resulting battle with Ink.

Ink: 

Cost to summon: 1 Green, 1 Red, 1 Black, 1 White, 1 Blue, 6 Colorless

Legendary creature, Skeleton God of Creation, 

Power/Toughness: 10/10

Special abilities: Reach. Cost, X Mana, Tap this card, Create 1, X/X creature with X/2 Abilities from creatures you control.

Flavor text: Ink the Creator of Universes, whenever Ink creates a Universe, the resulting battle between Error and Ink, leaves it Devastated to the point of needing a reset.

Dream:

Cost to Summon: 2 White, 1 Green, 1 Colorless.

Creature, Skeletal Spirit

Power Toughness: 3/3 

Special Abilities: If the Apple of positivity is attached, Flip this card.

Flavor Text: Dream, The Guardian of the Apples of positivity, Loves his brother.

Flipped Side: Dream

Legendary Creature, Guardian Spirit of Positivity

Power/Toughness: 8/8

Abilities, Reach. At each persons upkeep You gain 2 life. 

If Nightmare the Guardian of Negativity is on the battle field and under someone else's control and the Negativity apple is attached, Sacrifice this card and create a 9/9 black white green Legendary Creature Named Shattered Dream with Reach and has At each persons upkeep, Deal 2 damage to all Opponents and gain 2 life. 

Flavor Text: After 500 Years in stone, Dream has taken up arms to defend the Multiverse from Nightmare.

Shattered Dream: 

Legendary Creature, Fallen Guardian Spirit of Positivity

Power/Toughness: 9/9

Abilities: Reach, At each persons upkeep, Deal 2 damage to all Opponents and gain 2 life.

Flavor Text: After Confronting Nightmare with a negativity Apple and eating it, Dream has fallen into Shattered Dream.

Nightmare

Creature, Skeletal spirit

Power Toughness: 3/3 

Cost to summon 2 Black 1 green 1 colorless,

Abilities: If the Apple of Negativity card is attached, flip this card and give it to another player.

Flavor Text: Nightmare, The Guardian of the Apples of Negativity, Loves his brother.

Nightmare

Legendary Creature; Skeletal spirit Guardian of Negativity

Power Toughness: 8/8

Abilities: Reach, At each persons upkeep each opponent loses 2 life. 

Flavor Text: After all the bullying from the villagers, Nightmare ate the Negativity apple to end it all, for better or for worse, it turned him into this.

Determination.

Legendary Enchantment-Aura

Enchanted Creature has +3/+3 and has "Whenever this creature would leave the Battlefield roll a D20, if the result is 6 or Higher return that creature to the battlefield" Whenever this Enchant would leave the battlefield, Attach it to another creature