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 (This creature can't be blocked except by creatures with flying or reach.)

Whenever Blinding Angel deals combat damage to a player, that player skips their next combat phase.

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.)

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.

At the beginning of each opponent's upkeep, that player chooses draw step, main phase, or combat phase. The player skips each instance of the chosen step or phase this turn.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Whenever a creature you control attacks alone, if it's the first combat phase of the turn, untap that creature. After this phase, there is an additional combat phase.

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.

Morbid — This spell costs less to cast if a creature died this turn.

Enchant creature

When Grim Reaper's Sprint enters the battlefield, untap each creature you control. If it's your main phase, there is an additional combat phase after this phase.

Enchanted creature gets +2/+2 and has haste.

For Mirrodin (When this Equipment enters the battlefield, create a 2/2 red Rebel creature token, then attach this to it.)

Equipped creature gets +2/+2.

Whenever equipped creature attacks, if it's the first combat phase of the turn, untap each attacking creature. After this phase, there is an additional combat phase.

Equip

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.)

Double strike, haste

Whenever Lightning Runner attacks, you get (two energy counters), then you may pay eight . If you pay, untap all creatures you control, and after this phase, there is an additional combat phase.

Target player skips their next combat phase this turn.

Whenever a Warrior attacks, you may have its controller create a 1/1 white Warrior creature token that's tapped and attacking.

: Untap all attacking creatures. They gain trample, lifelink, and haste until end of turn. After this phase, there is an additional combat phase. Activate only during combat.

First strike

Whenever a Samurai or Warrior you control attacks alone, untap it. If it's the first combat phase of the turn, there is an additional combat phase after this phase.

Response deals 5 damage to target attacking or blocking creature.

When Revenant Patriarch enters the battlefield, if was spent to cast it, target player skips their next combat phase.

Revenant Patriarch can't block.

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.

Alliance — Whenever another creature enters the battlefield under your control, target creature an opponent controls can't block this turn. If this is the second time this ability has resolved this turn, that creature attacks during its controller's next combat phase if able.

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 — 2, 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.

Return a land you control to its owner's hand: Untap Trench Behemoth. It gains hexproof until end of turn.

Landfall — Whenever a land enters the battlefield under your control, target creature an opponent controls attacks during its controller's next combat phase if able.

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.)