You don't lose unspent red mana as steps and phases end. Magecraft — Whenever you cast or copy an instant or sorcery spell, discard a card, then draw a card. If this is the second time this ability has resolved this turn, Ashling deals 2 damage to each opponent and each creature they control. If it's the third time, add {R}{R}{R}{R}.

As an additional cost to cast this spell, discard a card. Draw two cards and create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

When this creature enters, you gain 2 life. When this creature leaves the battlefield, draw a card.

Escalate {1} (Pay this cost for each mode chosen beyond the first.) Choose one or more — • Target player discards all the cards in their hand, then draws that many cards. • Collective Defiance deals 4 damage to target creature. • Collective Defiance deals 3 damage to target opponent or planeswalker.

Creatures you control gain trample until end of turn. (Each of those creature can deal excess combat damage to the player or planeswalker it's attacking.) Draw a card.

Enchant creature When this Aura enters, draw a card. Enchanted creature has "{R}: This creature gets +1/+0 until end of turn."

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Menace (This creature can't be blocked except by two or more creatures.) Discard a card, Sacrifice this creature: Draw a card.

First strike, haste {2}{R}, Sacrifice this creature: Draw a card and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Target creature can't block this turn. Draw a card.

As an additional cost to cast this spell, discard a card. Draw two cards.

Boltwave deals 3 damage to each opponent.

Kicker {4} (You may pay an additional {4} as you cast this spell.) Burst Lightning deals 2 damage to any target. If this spell was kicked, it deals 4 damage instead.

When this enchantment enters, the Ring tempts you. Whenever you cast an instant or sorcery spell, this enchantment deals 2 damage to each opponent.

As long as this creature is equipped, it has haste. When this creature dies, it deals damage equal to its power to any target.

Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent.

Whenever a creature you control enters, this enchantment deals 1 damage to each opponent.

Whenever another creature you control enters, this creature deals 1 damage to each opponent. Unearth {R} ({R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Menace Players can't gain life. Whenever another creature enters, this creature deals 1 damage to that creature's controller.

This creature has first strike during your turn. Whenever an opponent draws a card, this creature deals 1 damage to them.

At the beginning of each player's upkeep, this enchantment deals 1 damage to them. Whenever a player casts a spell, if no mana was spent to cast that spell, this enchantment deals 5 damage to that player. {R}: Your opponents can't gain life this turn.

Escalate {3} (Pay this cost for each mode chosen beyond the first.) Choose one or both — • Target creature gets +3/+0 until end of turn. • Target creature gains first strike until end of turn.

Double target creature's power until end of turn. Flashback {4}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Equipped creature gets +1/+0 and has haste. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Target creature gets +3/+2 until end of turn.

Equipped creature gets +2/+0. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Haste Equipped creature gets +1/+1 and has haste. Reconfigure {R} ({R}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

0: Put a loyalty counter on each red planeswalker you control. 0: Create two 1/1 red Elemental creature tokens. They gain haste. Sacrifice them at the beginning of the next end step. −2: You may cast target instant or sorcery card with mana value 3 or less from your graveyard. If that spell would be put into your graveyard, exile it instead.

{T}: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) At the beginning of combat on your turn, create a 1/1 red Goblin creature token. That token gains haste until end of turn and attacks this combat if able.

This land enters tapped unless you control a Mountain. {T}: Add {R}. {R}, {T}, Exert this land: Add {R}{R}. If that mana is spent on a creature spell, it gains haste until end of turn. (An exerted permanent won't untap during your next untap step.)

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

({T}: Add {R}.) This land enters tapped unless you control three or more other Mountains. When this land enters untapped, create a 1/1 red Dwarf creature token.

Hexproof This land enters tapped. When this land enters, sacrifice two lands. {T}: Add three mana of any one color.

({T}: Add {R}.)

{T}: Add one mana of any color in your commander's color identity.

This artifact enters tapped. As this artifact enters, choose a color. {T}: Add one mana of the chosen color.

Equipped creature gets +1/+1. Whenever equipped creature deals combat damage to a player, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

Red spells you cast cost {1} less to cast.

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

{1}, {T}: This creature deals 1 damage to each opponent. Whenever you cast a noncreature spell, untap this creature.

Haste (This creature can attack and {T} as soon as it comes under your control.) {T}, Sacrifice this creature: It deals 1 damage to any target.

Defender {T}: This creature deals 1 damage to each player.

Choose one — • Abrade deals 3 damage to target creature. • Destroy target artifact.

{1}, Sacrifice this creature: It deals 2 damage to any target.

Hexgold Slash deals 2 damage to target creature. If that creature has toxic, Hexgold Slash deals 4 damage to that creature instead.

Lightning Bolt deals 3 damage to any target.

Shock deals 2 damage to any target.

Whenever this creature attacks while you control a creature with power 4 or greater, this creature gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures.)

As long as there are two or more instant and/or sorcery cards in your graveyard, this creature gets +1/+0 and has haste. (It can attack and {T} as soon as it comes under your control.)

Raid — This creature enters with a +1/+1 counter on it if you attacked this turn.

Spectacle {2}{R} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)