If Lake of the Dead would enter the battlefield, sacrifice a Swamp instead. If you do, put Lake of the Dead onto the battlefield. If you don't, put it into its owner's graveyard.
: Add .
, Sacrifice a Swamp: Add .

When Laquatus's Champion enters the battlefield, target player loses 6 life.
When Laquatus's Champion leaves the battlefield, that player gains 6 life.
: Regenerate Laquatus's Champion.

: Add .
: Draw a card. Activate this ability only if you have exactly seven cards in hand.

Flying
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
: Lightning Dragon gets +1/+0 until end of turn.

Whenever a player cycles a card, you may pay . If you do, Lightning Rift deals 2 damage to any target.

Discard your hand, Sacrifice Lion's Eye Diamond: Add three mana of any one color. Activate this ability only any time you could cast an instant.

Each player exiles all creature cards from their graveyard, then sacrifices all creatures they control, then puts all cards they exiled this way onto the battlefield.

Lonely Sandbar enters the battlefield tapped.
: Add .
Cycling (, Discard this card: Draw a card.)

Pay half your life, rounded up: Lurking Evil becomes a 4/4 Horror creature with flying.

Flying
Will of the council — When Magister of Worth enters the battlefield, starting with you, each player votes for grace or condemnation. If grace gets more votes, each player returns each creature card from their graveyard to the battlefield. If condemnation gets more votes or the vote is tied, destroy all creatures other than Magister of Worth.

When Man-o'-War enters the battlefield, return target creature to its owner's hand.

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you.
: Add .

Counter target spell. At the beginning of your next main phase, add an amount of equal to that spell's converted mana cost.

: Add .
, : Add one mana of any color.

Mana Vault doesn't untap during your untap step.
At the beginning of your upkeep, you may pay . If you do, untap Mana Vault.
At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.
: Add .

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)
Other creatures you control have dethrone.
Whenever a creature you control with a +1/+1 counter on it dies, return that card to the battlefield under your control at the beginning of the next end step.

At the beginning of your upkeep, sacrifice Masticore unless you discard a card.
: Masticore deals 1 damage to target creature.
: Regenerate Masticore.

, Sacrifice Memory Jar: Each player exiles all cards from their hand face down and draws seven cards. At the beginning of the next end step, each player discards their hand and returns to their hand each card they exiled this way.

When Mesmeric Fiend enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card.
When Mesmeric Fiend leaves the battlefield, return the exiled card to its owner's hand.

Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. (If it has X in its mana cost, X is 0.)
Storm (When you cast this spell, copy it for each spell cast before it this turn.)