: Add one mana of any color that a land an opponent controls could produce.

, : Add .

: Exile target card from an opponent's graveyard. If no cards are in that graveyard, flip this creature.

Starstorm deals X damage to each creature.
Cycling (, Discard this card: Draw a card.)

Red spells you cast cost less to cast.

Strive — This spell costs more to cast for each target beyond the first.
Choose any number of target creatures. Double the number of +1/+1 counters on each of them.

Return target creature card from your graveyard to your hand.
Threshold — Return that card from your graveyard to the battlefield instead if there are seven or more cards in your graveyard.

: Exile target card from a graveyard. If it was a creature card, put a +1/+1 counter on this creature and you gain 1 life.

, : Add .

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and no matter when it came under your control.)
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Each opponent sacrifices an artifact or enchantment of their choice.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip

When this artifact enters or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

: Target permanent becomes an artifact in addition to its other types until end of turn.

Equipped creature has myriad. (Whenever it attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)
Equip

Counter target spell with mana value 4 or greater.

Target player draws two cards and loses 2 life.

When this creature enters, search your library for up to X Plains cards, where X is the number of players who control more lands than you. Reveal those cards, put them into your hand, then shuffle.

Magmaquake deals X damage to each creature without flying and each planeswalker.

Haste
Whenever Skullbriar deals combat damage to a player, put a +1/+1 counter on it.
Counters remain on Skullbriar as it moves to any zone other than a player's hand or library.

Target creature you control deals damage equal to its power to another target creature.

This creature enters with three +1/+1 counters on it if you didn't cast it from your hand.
When this creature dies, exile it with three time counters on it and it gains suspend. (At the beginning of its owner's upkeep, they remove a time counter. When the last is removed, they may cast this card without paying its mana cost. It has haste.)

When this creature dies, return another target artifact card from your graveyard to your hand.

Whipflare deals 2 damage to each nonartifact creature.

Flying
Whenever this creature deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Kicker (You may pay an additional as you cast this spell.)
Breath of Darigaaz deals 1 damage to each creature without flying and each player. If this spell was kicked, it deals 4 damage to each creature without flying and each player instead.

Impact Resonance deals X damage divided as you choose among any number of target creatures, where X is the greatest amount of damage dealt by a source to a permanent or player this turn.

, : Add .

: Add or .
, , Sacrifice this artifact: Draw a card.

: Add . You gain 1 life.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)
: Regenerate this creature.

This artifact doesn't untap during your untap step.
: Add .
: Untap this artifact.

, : Double the number of each kind of counter on target artifact, creature, or land.

: Add .

When this creature dies, add .