Flying
Whenever this creature deals combat damage to a player, look at the top three cards of that player's library, exile one of them face down, then put the rest into their graveyard. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell.

Converge — You draw X cards and lose X life, where X is the number of colors of mana spent to cast this spell.

Return up to one target creature card from your graveyard to the battlefield if was spent to cast this spell. Creatures target player controls get +2/+0 and gain haste until end of turn if was spent to cast this spell. (Do both if was spent.)

Lifelink
Noncreature spells your opponents cast cost more to cast.

Artifacts you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)
At the beginning of your upkeep, if you control the artifact with the greatest mana value or tied for the greatest mana value, draw a card.

Whenever this creature attacks, untap each other creature you control.

Creature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a creature spell pays for or one mana of that creature's color.)
(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

, Sacrifice this creature: Draw a card.
Dredge 1 (If you would draw a card, you may mill a card instead. If you do, return this card from your graveyard to your hand.)

Return all nonland permanents to their owners' hands. If you return four or more nontoken permanents you control this way, you may put a permanent card from your hand onto the battlefield.

Flying
Whenever a creature with flying attacks, you may draw a card.

, : Put a bribery counter on target creature you don't control. Its controller draws a card.
Creatures with bribery counters on them can't attack or block.

All creatures get -2/-2 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

(: Add or .)
This land enters tapped unless you control two or more basic lands.

: Add .
, Sacrifice a creature: You gain 1 life.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand.
Whenever you draw a card, each opponent loses 1 life.

, Sacrifice this creature: Return target Arcane card from your graveyard to your hand.

Whenever you cast a creature spell, create X 1/1 black Thrull creature tokens, where X is that spell's mana value.
When you control seven or more Thrulls, sacrifice Endrek Sahr.

Equipped creature has shroud. (It can't be the target of spells or abilities.)
: Attach this Equipment to target creature you control.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Equipped creature gets +1/+1 and has mentor. (Whenever it attacks, put a +1/+1 counter on target attacking creature with lesser power.)
Whenever equipped creature mentors a creature, put a shield counter on that creature. (If that creature would be dealt damage or destroyed, remove a shield counter from it instead.)
Equip

Target creature gets -1/-1 until end of turn for each Swamp you control.