Flying
Double strike (This creature deals both first-strike and regular combat damage.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Whenever you gain life, draw a card.

This land enters with three mining counters on it.
, Remove a mining counter from this land: Add one mana of any color. If there are no mining counters on this land, sacrifice it.

Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.)
Destroy all creatures. If the gift was promised, return a creature card put into your graveyard this way to the battlefield under your control.

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
: Add .

Whenever an opponent discards a card, this creature gets +2/+2 and gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Enrage — Whenever this creature is dealt damage, each opponent sacrifices a permanent of their choice.

Look at the top three cards of your library. Put one of them into your hand, put one of them on the bottom of your library, and exile one of them. You may play the exiled card this turn.

Whenever one or more creatures you control that entered this turn deal combat damage to a player, create a 5/5 red Dragon Spirit creature token with flying.
: Creatures you control gain haste until end of turn.

Creeping Chill deals 3 damage to each opponent and you gain 3 life.
When Creeping Chill is put into your graveyard from your library, you may exile it. If you do, Creeping Chill deals 3 damage to each opponent and you gain 3 life.

: Add .
: This land becomes a 1/1 Blinkmoth artifact creature with flying until end of turn. It's still a land.
, : Target Blinkmoth creature gets +1/+1 until end of turn.

(: Add .)

(Gain the next level as a sorcery to add its ability.)
If you would gain life, you gain that much life plus 1 instead.
: Level 2
Whenever you gain life, put a +1/+1 counter on target creature you control.
: Level 3
When this Class becomes level 3, return target creature card from your graveyard to the battlefield. You gain life equal to that creature's toughness.

: Add .
, , Sacrifice this land: Create X Treasure tokens.

, Sacrifice two other creatures: Any number of target players each lose 2 life and sacrifice a creature of their choice. You add and draw a card. (Activate only as an instant.)

Enchant permanent
At the beginning of your first main phase, add mana equal to enchanted permanent's mana cost. (Mana cost includes color. If a mana symbol has multiple colors, choose one.)

As this enchantment enters, choose a creature type.
Whenever you cast a spell of the chosen type, copy that spell. (A copy of a permanent spell becomes a token.)

Deathtouch
Whenever this creature enters or deals combat damage to a player, exile target card from a graveyard. If it was a creature card, create a 2/2 black Rogue creature token. If it was a land card, create a Treasure token. Otherwise, you gain 3 life.

Players can't gain life.
Damage can't be prevented.
When this creature enters, it deals damage to each player equal to the number of nonbasic lands that player controls.

Flying
Spear of the Void Dragon — Whenever this creature attacks, each opponent sacrifices a nonland permanent of their choice.
Matter Absorption — Whenever an artifact is put into a graveyard from the battlefield or is put into exile from the battlefield, put two +1/+1 counters on this creature.

Landfall — Whenever a land you control enters, create a Food token or a Treasure token. (Food is an artifact with ", , Sacrifice this token: You gain 3 life." Treasure is an artifact with ", Sacrifice this token: Add one mana of any color.")