Myths Retold -
Sorcery (M)
Return all legendary cards from your graveyard to the battlefield.

Cracked Lens -
Artifact {C}
~ enters the battlefield tapped
, Sacrifice ~: Scry 2.

Crystalline Eye -
Artifact Creature - Eye (U)
If you would scry, fateseal instead.
3/3

Thought Jar
Artifact (R)
~ comes into play tapped
, , Sacrifice ~,: Draw 2 cards.
, , Sacrifice ~,: Draw 2 cards and lose two life.

Threads of the Moirai

Legendary Artifact (M)
If you would draw a card, instead scry 1, then draw a card.
If an opponent would draw a card, instead fateseal 1 that player, then he or she draws a card.

Whirlpool
Land (C)
Whirlpool enters the battlefield tapped.
Whenever Whirlpool enters the battlefield, each player puts the top three cards of his or her library into his or her graveyard.
: Add to your mana pool.

Eternal Well
Land {U}
: Add to your mana pool.
Pay 3 life: Put ~ from your graveyard into the battlefield.

Over the Horizon
Land (R)
Play Over the Horizon only if you've played another land this turn.
: Add one mana of any color to your mana pool.

Grave of Fallen Heroes
Legendary Land {M}
Whenever a Legendary permanent you control is put into a graveyard from the battlefield, put a charge counter on ~.
: Add X mana of any one color to your mana pool, where X is equal to the number of charge counters on ~.

Wary Confidant

Creature-Human Advisor (C)
Protection from white
Keep your friends at arms length, and your enemies at dagger length.
2/3

Xerxes' Priest
Creature — Human Cleric (U)
: Target player gains 2 life unless another player pays 2 life.
2/2

Pierce the Night

Sorcery (R)
Destroy all black permanents.

Ascend to Godhood -
Sorcery {M}
As an additional cost to play ~, exile a creature you control.
Search your library for a white planeswalker card with converted mana cost less than or equal to the exiled card's converted mana cost and put it into play, then shuffle your library.

edit: fixed to white mythic

Skipped white mythic.

son of a bitch i'm so bad at this

Storm Mage

Creature-Moonfolk Wizard
Flying
: Tap target creature.
1/1

that should be a blue common bro

It was meant to be <_<

Journey Home -
Sorcery (U)
Return target creature, target artifact and target land to their owners' hands.

I'm not sure that's uncommon, but the fact that it needs all three to be legal targets might offset that somewhat.

Flash Flood

Sorcery (R)
Shuffle all non-land permanents and all cards in all graveyards into their owner's libraries.