You may play two additional lands on each of your turns.

When Dee Kay, Finder of the Lost enters, open an Attraction.

Whenever you roll a 2, each opponent loses 1 life and you gain 1 life.

Whenever you roll a 4, you may tap or untap target artifact or creature.

Whenever you roll a 6, return target creature card from your graveyard to your hand.

When Fblthp, the Lost enters, draw a card. If it entered from your library or was cast from your library, draw two cards instead.

When Fblthp becomes the target of a spell, shuffle Fblthp into its owner's library.

Destroy target creature, enchantment, or planeswalker. Its controller creates two Map tokens. (They're artifacts with ", , Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

: Add . Put a time counter on Hourglass of the Lost.

, Remove X time counters from Hourglass of the Lost and exile it: Return each nonland permanent card with mana value X from your graveyard to the battlefield. Activate only as a sorcery.

Vigilance

As long as you are way behind, Knight of Lost Causes gets +3/+3 and has indestructible. (You are way behind if, at any point during this turn, an opponent had 10 or more life than you, controlled at least three more creatures than you, or had at least three more cards in hand than you.)

When Leonin of the Lost Pride dies, exile target card from an opponent's graveyard.

Target player reveals their hand. You choose a nonland card from it. That player puts that card into their library third from the top.

Flash

When Lost in the Maze enters, tap X target creatures. Put a stun counter on each of those creatures you don't control. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Tapped creatures you control have hexproof.

Whenever a creature attacks you or a planeswalker you control, reveal the top card of your library. If it's a Forest card, remove that creature from combat. Then put the revealed card on the bottom of your library.

Whenever you scry, put a verse counter on Lost Isle Calling.

, Exile Lost Isle Calling: Draw a card for each verse counter on Lost Isle Calling. If it had seven or more verse counters on it, take an extra turn after this one. Activate only as a sorcery.

Choose a nonartifact, nonland card name. Search target player's graveyard, hand, and library for any number of cards with that name and exile them. That player shuffles, then draws a card for each card exiled from their hand this way.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

As Lost Order of Jarkeld enters, choose an opponent.

Lost Order of Jarkeld's power and toughness are each equal to 1 plus the number of creatures the chosen player controls.

Put target nonland historic permanent into its owner's library fourth from the top. (Artifacts, legendaries, and Sagas are historic.)

Whenever Mishra, Lost to Phyrexia enters or attacks, choose three —

• Target opponent discards two cards.

• Mishra deals 3 damage to any target.

• Destroy target artifact or planeswalker.

• Creatures you control gain menace and trample until end of turn.

• Creatures you don't control get -1/-1 until end of turn.

• Create two tapped Powerstone tokens.

Target creature you control gains protection from the color of your choice until end of turn. Clash with an opponent. If you win, return Redeem the Lost to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

When Sentinel of Lost Lore enters, choose one or more —

• Return target card you own in exile that has an Adventure to your hand.

• Put target card you don't own in exile that has an Adventure on the bottom of its owner's library.

• Exile target player's graveyard.

As an additional cost to cast this spell, discard a card or sacrifice a permanent.

Fathomless descent — Souls of the Lost's power is equal to the number of permanent cards in your graveyard and its toughness is equal to that number plus 1.

Kicker (You may pay an additional as you cast this spell.)

Flying

When Sphinx of Lost Truths enters, draw three cards. Then if it wasn't kicked, discard three cards.

Whenever a land you control enters from anywhere other than your hand or you cast a spell from anywhere other than your hand, create a 3/3 red Spawn creature token.

Whenever a creature you control dies, you may pay . If you do, you gain X life.

Whenever you gain life, you may pay , where X is less than or equal to the amount of life you gained. If you do, draw X cards.