Create a 5/5 blue and red Elemental creature token with flying.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Create two 1/1 white Kithkin Soldier creature tokens.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Discard all the cards in your hand, then draw that many cards.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Merfolk and Druid cards in your graveyard have retrace. (You may cast cards with retrace from your graveyard by discarding a land card in addition to paying their other costs.)

Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Flame Jab deals 1 damage to any target.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Changeling (This card is every creature type.)

Create an X/X colorless Shapeshifter creature token with changeling and deathtouch, where X is the number of land cards in your graveyard.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Change the text of target spell or permanent by replacing all instances of one color word with another.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Target creature gets +4/+4 until end of turn.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Target player draws a card.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Target player discards a card.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Put target permanent you own on the bottom of your library. Reveal cards from the top of your library until you reveal a card that shares a card type with that permanent. Put that card onto the battlefield and the rest on the bottom of your library in a random order.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Create a 3/3 green Beast creature token.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Reach

Whenever Six attacks, mill three cards. You may put a land card from among them into your hand.

During your turn, nonland permanent cards in your graveyard have retrace. (You may cast permanent cards from your graveyard by discarding a land card in addition to paying their other costs.)

Create a token that’s a copy of target creature.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Target player loses 2 life and you gain 2 life.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Create a 1/1 black and green Worm creature token for each land card in your graveyard.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

+1: Return up to one target land card from your graveyard to your hand.

−1: Wrenn and Six deals 1 damage to any target.

−7: You get an emblem with “Instant and sorcery cards in your graveyard have retrace.” (You may cast instant and sorcery cards from your graveyard by discarding a land card in addition to paying their other costs.)