Flying

: Regenerate Living Airship.

Flying, trample

At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can't, Lord of the Pit deals 7 damage to you.

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

: Add .

Instant and enchantment spells you cast cost less to cast.

: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Each player may discard up to three cards. Mind Bomb deals damage to each player equal to 3 minus the number of cards they discarded this way.

Target player discards a card.

Draw a card at the beginning of the next turn's upkeep.

Whenever Mindstab Thrull attacks and isn't blocked, you may sacrifice it. If you do, defending player discards three cards.

Defender (This creature can't attack.)

: Mobile Fort gets +3/-1 until end of turn and can attack this turn as though it didn't have defender. Activate only once each turn.

Indestructible (Effects that say "destroy" don't destroy this artifact.)

Myr creatures get +1/+1.

: Create a 1/1 colorless Myr artifact creature token.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

If tapped for mana, Plains produce , Islands produce , Swamps produce , Mountains produce , and Forests produce instead of any other type.

Skip your untap step.

At the beginning of your upkeep, you may pay X life. If you do, untap X permanents.

Pay ½ life: Exile the top card of your library face down. Put that card into your hand at the beginning of the next end step.

Whenever Nemesis of Reason attacks, defending player mills ten cards.

Nightstalker Engine's power is equal to the number of creature cards in your graveyard.

Haste

At the beginning of your upkeep, return a red creature you control to its owner's hand.

Whenever a player plays a land, return Pangosaur to its owner's hand.

When Phyrexian Bloodstock leaves the battlefield, destroy target white creature. It can't be regenerated.

Phyrexian Colossus doesn't untap during your untap step.

Pay 8 life: Untap Phyrexian Colossus.

Phyrexian Colossus can't be blocked except by three or more creatures.

When Phyrexian Devourer's power is 7 or greater, sacrifice it.

Exile the top card of your library: Put X +1/+1 counters on Phyrexian Devourer, where X is the exiled card's mana value.

At the beginning of your upkeep, put a plague counter on Plague Boiler.

: Put a plague counter on Plague Boiler or remove a plague counter from it.

When Plague Boiler has three or more plague counters on it, sacrifice it. If you do, destroy all nonland permanents.

, : Search your library for a card, put that card into your hand, then shuffle.

Look at the top three cards of your library, then put them back in any order. You may shuffle.

Draw a card.

, Sacrifice an artifact: Add an amount of equal to the sacrificed artifact's mana value.

As Psychic Allergy enters, choose a color.

At the beginning of each opponent's upkeep, Psychic Allergy deals X damage to that player, where X is the number of nontoken permanents of the chosen color they control.

At the beginning of your upkeep, destroy Psychic Allergy unless you sacrifice two Islands.

When Rathi Fiend enters, each player loses 3 life.

, : Search your library for a Mercenary permanent card with mana value 3 or less, put it onto the battlefield, then shuffle.

, : Put a charge counter on Red Mana Battery.

, Remove any number of charge counters from Red Mana Battery: Add , then add an additional for each charge counter removed this way.

Sacrifice any number of artifacts, creatures, and/or lands. Draw a card for each permanent sacrificed this way.

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.)

, : Tap target artifact, creature, or land.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Whenever Scalpelexis deals combat damage to a player, that player exiles the top four cards of their library. If two or more of those cards have the same name, repeat this process.

At the beginning of your upkeep, if you have 5 or less life, sacrifice Second Chance and take an extra turn after this one.

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Shelldock Isle enters tapped.

: Add .

, : You may play the exiled card without paying its mana cost if a library has twenty or fewer cards in it.

: You may put a land card from your hand onto the battlefield. Activate only as a sorcery.

Smoldering Crater enters tapped.

: Add .

Cycling (, Discard this card: Draw a card.)

: Destroy target tapped creature. Activate only during your turn, before attackers are declared.

Destroy all Plains. For each land destroyed this way, Stench of Evil deals 1 damage to that land's controller unless they pay .

Flying

Champion an Elemental (When this enters, sacrifice it unless you exile another Elemental you control. When this leaves the battlefield, that card returns to the battlefield.)

Exile target creature. Its controller gains life equal to its power.

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.)

Tectonic Fiend attacks each combat if able.

: Each player draws a card.

Destroy target artifact or enchantment. You gain life equal to its mana value.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I, II — Look at the top five cards of your library. You may reveal an artifact card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

III — Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.

As The Mimeoplasm enters, you may exile two creature cards from graveyards. If you do, it enters as a copy of one of those cards with a number of additional +1/+1 counters on it equal to the power of the other card.

Cumulative upkeep—Exile the top card of your library. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

When a player doesn't pay Thought Lash's cumulative upkeep, that player exiles all cards from their library.

Exile the top card of your library: Prevent the next 1 damage that would be dealt to you this turn.

: Target land becomes the basic land type of your choice until end of turn. Activate only during your turn.

Each player shuffles their hand and graveyard into their library, then draws seven cards. (Then put Timetwister into its owner's graveyard.)

Threshold — As long as seven or more cards are in your graveyard, Treacherous Werewolf gets +2/+2 and has "When Treacherous Werewolf dies, you lose 4 life."

When Urza, Lord High Artificer enters, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."

Tap an untapped artifact you control: Add .

: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

: Add . If you control an Urza's Power-Plant and an Urza's Tower, add instead.

: Add . If you control an Urza's Mine and an Urza's Power-Plant, add instead.

Landfall — Whenever a land you control enters, put a +1/+1 counter on Vinelasher Kudzu.