Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

{R/W}: Aisha of Sparks and Smoke gains first strike until end of turn.

Whenever Aisha deals combat damage, you may cast a sorcery spell from your hand with mana value less than or equal to that damage without paying its mana cost.

Whenever a creature enters the battlefield under your control, you gain 1 life.

Whenever Akroan Hoplite attacks, it gets +X/+0 until end of turn, where X is the number of attacking creatures you control.

Anger of the Gods deals 3 damage to each creature. If a creature dealt damage this way would die this turn, exile it instead.

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

At the beginning of your upkeep, put a muster counter on Assemble the Legion. Then create a 1/1 red and white Soldier creature token with haste for each muster counter on Assemble the Legion.

Creatures your opponents control enter the battlefield tapped.

Whenever a creature enters the battlefield under an opponent's control, you gain 1 life.

Put a +1/+1 counter on each creature you control.

First strike

Belligerent Hatchling enters the battlefield with four -1/-1 counters on it.

Whenever you cast a red spell, remove a -1/-1 counter from Belligerent Hatchling.

Whenever you cast a white spell, remove a -1/-1 counter from Belligerent Hatchling.

Attacking creatures you control have double strike.

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

{2}{R}{W}: Boros Challenger gets +1/+1 until end of turn.

{T}: Add {R} or {W}.

{R}{W}, {T}, Sacrifice Boros Cluestone: Draw a card.

Boros Garrison enters the battlefield tapped.

When Boros Garrison enters the battlefield, return a land you control to its owner's hand.

{T}: Add {R}{W}.

{T}: Add {R} or {W}.

{R}{W}: Boros Keyrune becomes a 1/1 red and white Soldier artifact creature with double strike until end of turn. (It deals both first-strike and regular combat damage.)

{T}: Add {R} or {W}.

{R/W}{R/W}{R/W}{R/W}, {T}, Sacrifice Boros Locket: Draw two cards.

Whenever Boros Reckoner is dealt damage, it deals that much damage to any target.

{R/W}: Boros Reckoner gains first strike until end of turn.

({R/W} can be paid with either {R} or {W}.)

First strike

Double strike

Creatures you control have vigilance.

Each creature you control can block an additional creature each combat.

Vigilance, haste

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

You gain 5 life.

Destroy all creatures with toughness 4 or greater.

Destroy all enchantments.

(Gain the next level as a sorcery to add its ability.)

If you would gain life, you gain that much life plus 1 instead.

{3}{W}: Level 2

Whenever you gain life, put a +1/+1 counter on target creature you control.

{4}{W}: 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.

Flash

Creatures you control get +2/+2.

When Duergar Hedge-Mage enters the battlefield, if you control two or more Mountains, you may destroy target artifact.

When Duergar Hedge-Mage enters the battlefield, if you control two or more Plains, you may destroy target enchantment.

{2}, {T}: You gain 5 life. Shuffle Elixir of Immortality and your graveyard into their owner's library.

End the Festivities deals 1 damage to each opponent and each creature and planeswalker they control.

Destroy up to one target artifact. Put a +1/+1 counter on up to one target creature.

You gain 2 life for each creature you control.

{R/W}: Figure of Destiny becomes a Kithkin Spirit with base power and toughness 2/2.

{R/W}{R/W}{R/W}: If Figure of Destiny is a Spirit, it becomes a Kithkin Spirit Warrior with base power and toughness 4/4.

{R/W}{R/W}{R/W}{R/W}{R/W}{R/W}: If Figure of Destiny is a Warrior, it becomes a Kithkin Spirit Warrior Avatar with base power and toughness 8/8, flying, and first strike.

Fire Diamond enters the battlefield tapped.

{T}: Add {R}.

Firecannon Blast deals 3 damage to target creature.

Raid -- Firecannon Blast deals 6 damage instead if you attacked this turn.

Flame Slash deals 4 damage to target creature.

As Furycalm Snarl enters the battlefield, you may reveal a Mountain or Plains card from your hand. If you don't, Furycalm Snarl enters the battlefield tapped.

{T}: Add {R} or {W}.

Put a +1/+1 counter on each of up to two target creatures.

Multicolored creatures you control get +1/+1.

Whenever a creature you control attacks, put a +1/+1 counter on it.

Creatures you control get +1/+1.

As long as it's your turn, creatures you control get +2/+0.

As long as it's not your turn, creatures you control get +0/+2.

Creatures you control have menace. (They can't be blocked except by two or more creatures.)

Double strike

Flying, trample

White creatures you control get +1/+1.

({T}: Add {W}.)

Idyllic Grange enters the battlefield tapped unless you control three or more other Plains.

When Idyllic Grange enters the battlefield untapped, put a +1/+1 counter on target creature you control.

Double strike (This creature deals both first-strike and regular combat damage.)

Indestructible

As long as your devotion to red and white is less than seven, Iroas isn't a creature.

Creatures you control have menace.

Prevent all damage that would be dealt to attacking creatures you control.

Exile target artifact or enchantment.

Lava Coil deals 4 damage to target creature. If that creature would die this turn, exile it instead.

Red creatures you control get +1/+0.

White creatures you control get +0/+1.

{R}{W}, Exile Legion's Initiative: Exile all creatures you control. At the beginning of the next combat, return those cards to the battlefield under their owner's control and those creatures gain haste until end of turn.

Destroy target creature with power 4 or greater.

Marble Diamond enters the battlefield tapped.

{T}: Add {W}.

Target player sacrifices a permanent.

Mob Justice deals damage to target player or planeswalker equal to the number of creatures you control.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

At the beginning of your upkeep, choose one at random. Create a red and white creature token with those characteristics.

• 3/1 Human Warrior with trample and haste.

• 2/1 Human Cleric with lifelink and haste.

• 1/2 Human Rogue with haste and "When this creature enters the battlefield, it deals 1 damage to any target."

(Gain the next level as a sorcery to add its ability.)

Spells your opponents cast during your turn cost {1} more to cast.

{2}{W}: Level 2

Creatures you control get +1/+1.

{4}{W}: Level 3

Whenever you attack, until end of turn, target attacking creature gets +1/+1 for each other attacking creature and gains double strike.

When Path of Mettle enters the battlefield, it deals 1 damage to each creature that doesn't have first strike, double strike, vigilance, or haste.

Whenever you attack with at least two creatures that have first strike, double strike, vigilance, and/or haste, transform Path of Mettle.

(Transforms from Path of Mettle.)

{T}: Add one mana of any color.

{1}{R}, {T}: Metzali, Tower of Triumph deals 2 damage to each opponent.

{2}{W}, {T}: Choose a creature at random that attacked this turn. Destroy that creature.

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

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Vigilance

Relentless Raptor attacks or blocks each combat if able.

Flying, haste

If a spell would deal damage to you or another permanent you control, prevent that damage.

If a spell would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 1 instead.

Exile target artifact or enchantment.

Choose one --

• Rip Apart deals 3 damage to target creature or planeswalker.

• Destroy target artifact or enchantment.

When Rise of the Hobgoblins enters the battlefield, you may pay {X}. If you do, create X 1/1 red and white Goblin Soldier creature tokens.

{R/W}: Red creatures and white creatures you control gain first strike until end of turn.

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

Rustvale Bridge enters the battlefield tapped.

Indestructible

{T}: Add {R} or {W}.

({T}: Add {R} or {W}.)

Sacred Peaks enters the battlefield tapped.

Destroy target artifact or enchantment. You gain 3 life.

Flying, menace

{T}: Add {C}{C}.

{1}, {T}: Stun Sniper deals 1 damage to target creature. Tap that creature.

Double strike, vigilance, trample

Temple of Triumph enters the battlefield tapped.

When Temple of Triumph enters the battlefield, scry 1.

{T}: Add {R} or {W}.

{T}: Add {C}{C}. Activate only if you control five or more lands.

At the beginning of your end step, put an invitation counter on Wedding Announcement. If you attacked with two or more creatures this turn, draw a card. Otherwise, create a 1/1 white Human creature token. Then if Wedding Announcement has three or more invitation counters on it, transform it.

Creatures you control get +1/+1.

Wind-Scarred Crag enters the battlefield tapped.

When Wind-Scarred Crag enters the battlefield, you gain 1 life.

{T}: Add {R} or {W}.

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

Windbrisk Heights enters the battlefield tapped.

{T}: Add {W}.

{W}, {T}: You may play the exiled card without paying its mana cost if you attacked with three or more creatures this turn.

Whenever you cast an instant or sorcery spell, create a 1/1 red Elemental creature token.