Whenever one or more modified creatures you control attack, untap all modified creatures you control. After this phase, there is an additional combat phase. This ability triggers only once each turn. (Equipment, Auras you control, and counters are modifications.)

Flying, vigilance, haste

Whenever Aurelia, the Warleader attacks for the first time each turn, untap all creatures you control. After this phase, there is an additional combat phase.

Flying, trample

Whenever Bloodthirster deals combat damage to a player, untap it. After this phase, there is an additional combat phase.

Bloodthirster can't attack a player it has already attacked this turn.

Enchant creature you control

When enchanted creature deals combat damage to a player, sacrifice it and attach Breath of Fury to a creature you control. If you do, untap all creatures you control and after this phase, there is an additional combat phase.

If Combat Celebrant hasn't been exerted this turn, you may exert it as it attacks. When you do, untap all other creatures you control and after this phase, there is an additional combat phase. (An exerted creature won't untap during your next untap step.)

Equipped creature can block an additional creature each combat.

Equip

Haste

Whenever one or more other attacking legendary creatures you control die, untap all creatures you control. After this phase, there is an additional combat phase. This ability triggers only once each turn.

Vigilance

Fibrous Entangler must be blocked if able.

Fibrous Entangler can block an additional creature each combat.

Foriysian Brigade can block an additional creature each combat.

: Add .

: Foriysian Totem becomes a 4/4 red Giant artifact creature with trample until end of turn.

As long as Foriysian Totem is a creature, it can block an additional creature each combat.

Trample

Whenever Geode Golem deals combat damage to a player, you may cast your commander from the command zone without paying its mana cost. (You still pay any additional costs.)

When Godo, Bandit Warlord enters the battlefield, you may search your library for an Equipment card, put it onto the battlefield, then shuffle.

Whenever Godo attacks for the first time each turn, untap it and all Samurai you control. After this phase, there is an additional combat phase.

Spree (Choose one or more additional costs.)

+ — Untap all creatures you control. If it's your combat phase, there is an additional combat phase after this phase.

+ — Creatures you control get +1/+0 and gain first strike until end of turn.

+ — Choose target opponent. Whenever a creature you control deals combat damage to that player this turn, create a tapped Treasure token.

Flying, haste

Whenever Hellkite Charger attacks, you may pay . If you do, untap all attacking creatures and after this phase, there is an additional combat phase.

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

Cast this spell only during the declare blockers step on an opponent's turn.

Remove all attacking creatures from combat and untap them. After this phase, there is an additional combat phase. Each of those creatures attacks that combat if able. They can't attack you or planeswalkers you control that combat.

Whenever you attack, if it's the first combat phase of the turn, untap all attacking creatures. They gain first strike until end of turn. After this phase, there is an additional combat phase.

Choose a Background (You can have a Background as a second commander.)

Knight of Sorrows can block an additional creature each combat.

Afterlife 1 (When this creature dies, create a 1/1 white and black Spirit creature token with flying.)

Choose two target creatures. Untap them. Put two +1/+1 counters on each of them. They gain vigilance, indestructible, and haste until end of turn. After this main phase, there is an additional combat phase. Only the chosen creatures can attack during that combat phase.

Each creature you control gets +1/+0 for each time it has attacked this turn.

Landfall — Whenever a land enters the battlefield under your control, if it's your main phase, there's an additional combat phase after this phase. At the beginning of that combat, untap all creatures you control.

Toxic 2 (Players dealt combat damage by this creature also get two poison counters.)

Whenever a creature you control with toxic deals combat damage to a player, that player gets an additional poison counter.

: Target creature you control with toxic gains deathtouch until end of turn.

Menace

Whenever Obeka, Splitter of Seconds deals combat damage to a player, you get that many additional upkeep steps after this phase.

Whenever Port Razer deals combat damage to a player, untap each creature you control. After this phase, there is an additional combat phase.

Port Razer can't attack a player it has already attacked this turn.

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.

Creatures you control gain first strike and vigilance until end of turn. After this main phase, there is an additional combat phase followed by an additional main phase.

Flying

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)

Whenever Scourge of the Throne attacks for the first time each turn, if it's attacking the player with the most life or tied for most life, untap all attacking creatures. After this phase, there is an additional combat phase.

Reach (This creature can block creatures with flying.)

Selesnya Sagittars can block an additional creature each combat.

Flying

At the beginning of your postcombat main phase, there is an additional beginning phase after this phase. (The beginning phase includes the untap, upkeep, and draw steps.)

Kicker and/or (You may pay an additional and/or as you cast this spell.)

When Stronghold Arena enters the battlefield, you gain 3 life for each time it was kicked.

Whenever one or more creatures you control deal combat damage to a player, you may reveal the top card of your library and put it into your hand. If you do, you lose life equal to its mana value.

Visit — After the first combat phase this turn, there's an additional combat phase. At the beginning of that combat, untap all creatures that attacked this turn.

Lights — 4, 6

Cast this spell only during an opponent's turn and only during combat.

Prevent all combat damage that would be dealt to you and planeswalkers you control this turn. Untap all attacking creatures and goad them. After this phase, there is an additional combat phase.

You may cast CARDNAME during an opponent's combat phase.

Firstest strike (This creature deals combat damage to creatures before creatures with first strike.)

After each opponent's first combat phase of each turn, there is an additional combat phase. Only CARDNAME can attack during that combat phase.

Spree (Choose one or more additional costs.)

+ — Put two +1/+1 counters on target creature.

+ — Target creature gains trample until end of turn.

+ — Until end of turn, target creature gains "Whenever this creature deals combat damage to a player, draw two cards."

Flying

Menace (This creature can't be blocked except by two or more creatures.)

Two-Headed Dragon can block an additional creature each combat.

: Two-Headed Dragon gets +2/+0 until end of turn.

As an additional cost to cast this spell, you may pay .

Prevent all combat damage that would be dealt this turn. If this spell's additional cost was paid, this effect doesn't affect combat damage that would be dealt by red creatures.

Equipped creature gets +0/+3 and can block an additional creature each combat.

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

Reach (This creature can block creatures with flying.)

Watcher in the Web can block an additional seven creatures each combat.

After the first postcombat main phase this turn, there's an additional combat phase followed by an additional main phase. At the beginning of that combat, untap all creatures that attacked this turn.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

+1: Creatures you control get +1/+0 and gain haste until end of turn.

0: Create a 1/1 red Devil creature token with "When this creature dies, it deals 1 damage to any target."

−6: You get an emblem with "At the end of the first combat phase on your turn, untap target creature you control. After this phase, there is an additional combat phase."