Flying

Whenever Aerial Surveyor attacks, if defending player controls more lands than you, search your library for a basic Plains card, put it onto the battlefield tapped, then shuffle.

Crew 2

Akoum Refuge enters the battlefield tapped.

When Akoum Refuge enters the battlefield, you gain 1 life.

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

First strike

Whenever Alesha, Who Smiles at Death attacks, you may pay {W/B}{W/B}. If you do, return target creature card with power 2 or less from your graveyard to the battlefield tapped and attacking.

Haste

Whenever Ankle Shanker attacks, creatures you control gain first strike and deathtouch until end of turn.

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

Whenever Audacious Thief attacks, you draw a card and you lose 1 life.

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

Equip {4}

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}.

Flying

Whenever a player attacks one of your opponents, if that opponent has more life than another of your opponents, that attacking player draws a card and you put two +1/+1 counters on a creature you control.

Whenever a creature you control attacks, defending player loses 1 life and you gain 1 life.

{3}{R/W}{R/W}: Creatures your opponents control block this turn if able, and you choose how those creatures block.

Menace

Whenever a creature attacks one of your opponents, that player loses 1 life.

Whenever a creature you control attacks, defending player loses 1 life and you gain 1 life.

Haste

Whenever Captain Lannery Storm attacks, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Whenever you sacrifice a Treasure, Captain Lannery Storm gets +1/+0 until end of turn.

Whenever a creature without flying attacks you or a planeswalker you control, Circle of Flame deals 1 damage to that creature.

Trample

Whenever Coastline Marauders attacks, it gets +1/+0 until end of turn for each land defending player controls.

Encore {4}{R}{R} ({4}{R}{R}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

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

Whenever Conduit of Storms attacks, add {R} at the beginning of your next main phase this turn.

{3}{R}{R}: Transform Conduit of Storms.

Whenever Conduit of Emrakul attacks, add {C}{C} at the beginning of your next main phase this turn.

Whenever an opponent attacks you and/or one or more planeswalkers you control, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast it.

Enchant player

Whenever enchanted player is attacked, create a 2/2 black Zombie creature token. Each opponent attacking that player does the same.

Enchant player

Whenever enchanted player is attacked, you gain 2 life. Each opponent attacking that player does the same.

Enchant player

Whenever a land enters the battlefield under enchanted player's control, you create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)

Whenever a creature an opponent controls attacks one of your opponents, double its power until end of turn.

{X}{X}{R}: Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.)

When Death Kiss becomes monstrous, goad up to X target creatures your opponents control.

Exile target creature. If you don't control a Human, you lose life equal to that creature's toughness.

Destroy target nonblack creature.

Whenever one or more creatures attack, you may have target attacking creature gain double strike until end of turn.

When Emberwilde Captain enters the battlefield, you become the monarch.

Whenever an opponent attacks you while you're the monarch, Emberwilde Captain deals damage to that player equal to the number of cards in their hand.

Whenever Etali, Primal Storm attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs.

Whenever equipped creature attacks, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

{R}: Creatures you control gain haste until end of turn.

{3}{R}{R}: Create a 5/5 red Dragon Spirit creature token with flying. Activate only if you control an attacking modified creature. (Equipment, Auras you control, and counters are modifications.)

Whenever equipped creature attacks, put a +1/+1 counter on it and tap up to one target creature defending player controls.

Equip {W} ({W}: Attach to target creature you control. Equip only as a sorcery.)

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Whenever Guiltfeeder attacks and isn't blocked, defending player loses 1 life for each card in their graveyard.

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

Whenever Hammers of Moradin attacks, for each opponent, tap up to one target creature that player controls.

{T}: Add {C}.

{R}, {T}: Target creature gains haste until end of turn.

{3}{R}{R}, {T}: If you both own and control Hanweir Battlements and a creature named Hanweir Garrison, exile them, then meld them into Hanweir, the Writhing Township.

Whenever Hanweir Garrison attacks, create two 1/1 red Human creature tokens that are tapped and attacking.

(Melds with Hanweir Battlements.)

Haste

Whenever a creature you control attacks, Hellrider deals 1 damage to the player or planeswalker it's attacking.

Whenever a creature attacks you, its controller loses 1 life.

Whenever Hoarding Ogre attacks, roll a d20.

1--9 | Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

10--19 | Create two Treasure tokens.

20 | Create three Treasure tokens.

{T}: Add {C}.

{1}, {T}, Sacrifice a creature: Put a soul counter on Hostile Hostel. Then if there are three or more soul counters on it, remove those counters, transform it, then untap it. Activate only as a sorcery.

Whenever Creeping Inn attacks, you may exile a creature card from your graveyard. If you do, each opponent loses X life and you gain X life, where X is the number of creature cards exiled with Creeping Inn.

{4}: Creeping Inn phases out.

If a creature attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Whenever you attack a player, tap target creature that player controls and goad it. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Whenever an opponent attacks another one of your opponents, you and the attacking player each draw a card and lose 1 life.

Whenever a creature an opponent controls attacks, if you're the defending player, create a 3/3 red Ogre creature token unless that creature's controller pays {3}.

Whenever Krenko, Tin Street Kingpin attacks, put a +1/+1 counter on it, then create a number of 1/1 red Goblin creature tokens equal to Krenko's power.

First strike, trample, haste

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

When Life of the Party enters the battlefield, if it's not a token, each opponent creates a token that's a copy of it. The tokens are goaded for the rest of the game. (They attack each combat if able and attack a player other than you if able.)

When Marchesa's Decree enters the battlefield, you become the monarch.

Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life.

Whenever a nontoken creature you control attacks, create a 1/1 red Goblin creature token that's tapped and attacking.

Sacrifice Mardu Ascendancy: Creatures you control get +0/+3 until end of turn.

({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}.)

Each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the rest. If {B}{R} was spent to cast this spell, you choose the permanents for each player instead.

Vigilance

Whenever Nadaar, Selfless Paladin enters the battlefield or attacks, venture into the dungeon. (Enter the first room or advance to the next room.)

Other creatures you control get +1/+1 as long as you've completed a dungeon.

Nomad Outpost enters the battlefield tapped.

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

At the beginning of combat on your turn, exile target red, white, or black creature card from your graveyard. Create a token that's a copy of that card, except it's 1/1. It gains haste until your next turn.

(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.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Whenever a creature you control with power 2 or less attacks, Raid Bombardment deals 1 damage to the player or planeswalker that creature is attacking.

Rakdos Carnarium enters the battlefield tapped.

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

{T}: Add {B}{R}.

Whenever Rakshasa Debaser attacks, put target creature card from defending player's graveyard onto the battlefield under your control.

Encore {6}{B}{B} ({6}{B}{B}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life and you gain 1 life.

First strike, trample

Whenever Sardian Avenger attacks, it gets +X/+0 until end of turn, where X is the number of artifacts your opponents control.

Whenever an artifact an opponent controls is put into a graveyard from the battlefield, Sardian Avenger deals 1 damage to that player.

Scoured Barrens enters the battlefield tapped.

When Scoured Barrens enters the battlefield, you gain 1 life.

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

Whenever a creature attacks you or a planeswalker you control, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Enchant creature

Enchanted creature gets +2/+2 and is goaded. (It attacks each combat if able and attacks a player other than you if able.)

Whenever enchanted creature attacks, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Flying

Whenever Skyknight Vanguard attacks, create a 1/1 white Soldier creature token that's tapped and attacking.

Flying

Slumbering Dragon can't attack or block unless it has five or more +1/+1 counters on it.

Whenever a creature attacks you or a planeswalker you control, put a +1/+1 counter on Slumbering Dragon.

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

Vigilance

Whenever Sun Titan enters the battlefield or attacks, you may return target permanent card with mana value 3 or less from your graveyard to the battlefield.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

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

Whenever equipped creature deals combat damage, roll a d12. If the result is greater than the damage dealt or the result is 12, double the number of +1/+1 counters on that creature.

Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Haste

Whenever Taunting Kobold attacks, goad target creature an opponent controls. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Whenever Tectonic Giant attacks or becomes the target of a spell an opponent controls, choose one --

• Tectonic Giant deals 3 damage to each opponent.

• Exile the top two cards of your library. Choose one of them. Until the end of your next turn, you may play that card.

Whenever you attack, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Whenever you sacrifice a Clue, venture into the dungeon. (Enter the first room or advance to the next room.)

Vigilance, trample

Whenever Tori D'Avenant, Fury Rider attacks, all other attacking creatures you control get +1/+1 until end of turn. Other red attacking creatures you control gain trample until end of turn. Untap each other white attacking creature you control.

Whenever equipped creature attacks, defending player reveals cards from the top of their library until they reveal a land card. The creature gets +1/+0 until end of turn for each card revealed this way. That player puts the revealed cards into their graveyard.

Equip {2}

Deathtouch

As long as it's your turn, Triumphant Adventurer has first strike.

Whenever Triumphant Adventurer attacks, venture into the dungeon. (Enter the first room or advance to the next room.)

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

Whenever Truefire Captain is dealt damage, it deals that much damage to target player.

Creatures you control gain indestructible until end of turn.

Addendum -- If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.

Enchant creature

Enchanted creature has "Whenever this creature attacks, it deals X damage to defending player, where X is the number of cards in their hand."

When Unquenchable Fury is put into your graveyard from the battlefield, return it to your hand.

Whenever Zhentarim Bandit attacks, you may pay 1 life. If you do, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")