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.)

Trample Whenever a source you control deals 5 or more damage to a player, draw a card.

Vigilance, reach, trample Whenever this creature attacks or blocks, choose one — • Create a 3/3 green Beast creature token. • You gain 3 life. • Draw a card.

Whenever Etali 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.

When this enchantment enters, if you control a creature with power 4 or greater, draw a card. Creatures you control have trample. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.) Whenever a creature you control with power 4 or greater enters, draw a card.

{3}{R}{R}: Untap all creatures you control. After this main phase, there is an additional combat phase followed by an additional main phase. Activate only as a sorcery.

Whenever Anzrag becomes blocked, untap each creature you control. After this phase, there is an additional combat phase. {3}{R}{R}{G}{G}: Anzrag must be blocked each combat this turn if able.

Flying, trample Whenever this creature deals combat damage to a player, untap it. After this phase, there is an additional combat phase. This creature can't attack a player it has already attacked this turn.

After this main phase, there are two additional combat phases. At the beginning of each combat this turn, untap all creatures that attacked this turn.

Spree (Choose one or more additional costs.) + {2}{R} — Untap all creatures you control. If it's your combat phase, there is an additional combat phase after this phase. + {2} — Creatures you control get +1/+0 and gain first strike until end of turn. + {R} — Choose target opponent. Whenever a creature you control deals combat damage to that player this turn, create a tapped Treasure token.

Flying, haste Whenever this creature attacks, you may pay {5}{R}{R}. If you do, untap all attacking creatures and after this phase, there is an additional combat phase.

Each creature you control gets +1/+0 for each time it has attacked this turn. Landfall — Whenever a land you control enters, 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.

Whenever this creature deals combat damage to a player, untap each creature you control. After this phase, there is an additional combat phase. This creature can't attack a player it has already attacked this turn.

Cast this spell only during combat on your turn. Choose one — • Creatures you control gain double strike until end of turn. • Untap all creatures you control. After this phase, there is an additional combat phase. Entwine {1}{R} (Choose both if you pay the entwine cost.)

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.

This land enters tapped unless you control a Mountain. {T}: Add {R}. {1}{R}{R}, {T}: Creatures you control get +1/+0 until end of turn.

This land enters tapped unless you control a Forest. {T}: Add {G}. {2}{G}{G}, {T}: Add six {G}. Spend this mana only to cast creature spells or activate abilities of creatures.

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

This land enters tapped unless you control two or fewer other lands. {T}: Add {R} or {G}.

{T}: Add {C}. {R/G}, {T}: Add {R}{R}, {R}{G}, or {G}{G}.

({T}: Add {G}.)

{T}: Add {C}. {1}, {T}: Put a storage counter on this land. {1}, Remove X storage counters from this land: Add X mana in any combination of {R} and/or {G}.

As this land enters, you may reveal a Mountain or Forest card from your hand. If you don't, this land enters tapped. {T}: Add {R} or {G}.

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {R}{G}.

{T}: Add {C}. {T}: Add {R} or {G}. This land deals 1 damage to you.

{1}, {T}: Add {R}{G}.

({T}: Add {R}.)

{T}: Add {G}. {G}, {T}: Target legendary creature gets +1/+1 until end of turn.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

This land enters tapped unless you control a Mountain or a Forest. {T}: Add {R} or {G}.

({T}: Add {R} or {G}.) This land enters tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

This land enters tapped unless you have two or more opponents. {T}: Add {R} or {G}.

({T}: Add {R} or {G}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

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

Enchant creature Enchanted creature gets +2/+2 and has "Whenever this creature attacks, untap all lands you control." Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

As this enchantment enters, choose Khans or Dragons. • Khans — At the beginning of each of your main phases, add {G}{G}. • Dragons — Whenever a creature you control with flying enters, you may have it fight target creature you don't control.

Haste Whenever one or more creatures you control attack, add that much mana in any combination of {R} and/or {G}. Until end of turn, you don't lose this mana as steps and phases end.

Flying Whenever this creature attacks, add {R}{R}{R}{G}{G}{G}. Until end of turn, you don't lose this mana as steps and phases end.

Permanents you control gain hexproof and indestructible until end of turn.

Creature spells you control can't be countered. Nontoken creatures you control have riot. (They enter with your choice of a +1/+1 counter or haste.)

Whenever a creature you control attacks, you may put a quest counter on this enchantment. As long as this enchantment has seven or more quest counters on it, creatures you control get +5/+5.

Creatures you control have haste. Sacrifice this enchantment: Target creature gets +2/+2 until end of turn.

Untap all creatures and gain control of them until end of turn. They gain haste until end of turn.

Whenever another creature you control enters, that creature gets +2/+0 and gains haste until end of turn. (It can attack and {T} this turn.)

Whenever this creature attacks, creatures you control gain trample and get +X/+X until end of turn, where X is the greatest power among creatures you control.

At the beginning of each combat, double the power and toughness of each creature you control until end of turn.

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.) If a creature you control attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

{T}: Untap target Forest.

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

Trample, haste Skilled Outrider — Whenever this creature deals combat damage to a player, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Flying {T}: Add one mana of any color.

{T}: Add {G}.

{T}: Add {G}. Ferocious — {T}: Add {G}{G}{G}{G}. Activate only if you control a creature with power 4 or greater. Eternalize {2}{G}{G} ({2}{G}{G}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Snake Druid with no mana cost. Eternalize only as a sorcery.)

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

This artifact enters tapped. {T}: Add {R}.

{T}: Add {G}.

Each spell you cast that's red or green costs {1} less to cast.

Creature spells you cast with power 4 or greater cost {2} less to cast. Whenever Goreclaw attacks, each creature you control with power 4 or greater gets +1/+1 and gains trample until end of turn.

{1}, {T}: Add {R}{G}.

{T}: Add two mana in any combination of colors. Spend this mana only to cast creature spells or activate abilities of creature sources. Whenever you cast a creature spell with power 5 or greater, put a +1/+1 counter on Gwenna and untap it.

{T}: Add {G}.

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

This artifact enters tapped. {T}: Add {G}.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Whenever one or more creatures you control deal combat damage to a player, tap all lands that player controls and untap all lands you control.

Whenever Radha attacks, you may add {R}{R}. {T}: Add {G}.

Haste (This creature can attack and {T} as soon as it comes under your control.) Whenever Ruby attacks while you control a creature with power 4 or greater, Ruby gets +2/+2 until end of turn. {T}: Add {R} or {G}.

Sacrifice this creature: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

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

{T}: Add {C}. {T}: Add {R} or {G}. This artifact deals 1 damage to you.

Search your library for a Forest card, put it onto the battlefield, then shuffle.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Escalate {G} (Pay this cost for each mode chosen beyond the first.) Choose one or more — • Destroy target artifact. • Destroy target enchantment. • Target creature gains hexproof and indestructible until end of turn.

Destroy target artifact, target creature, target enchantment, and target land. (You can't cast this spell unless you have legal choices for all its targets.)