Choose one — • Search your library for a basic land card, reveal it, put it into your hand, then shuffle. • Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Choose target creature. Whenever that creature is dealt damage this turn, it deals that much damage to each other creature and each player.

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.

When Kogla enters, it fights up to one target creature you don't control. Whenever Kogla attacks, destroy target artifact or enchantment defending player controls. {1}{G}: Return target Human you control to its owner's hand. Kogla gains indestructible until end of turn.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Destroy target land. Star of Extinction deals 20 damage to each creature and each planeswalker.

Exile target creature. Its controller gains life equal to its power.

Equipped creature gets +1/+0 for each opponent you have. Whenever equipped creature is dealt damage, it deals that much damage to any target. Equip {4}

Whenever this creature is dealt damage, it deals that much damage to any target. {R/W}: This creature gains first strike until end of turn.

Indestructible Whenever this creature is dealt damage, it deals that much damage to target opponent. {2}{R}, {T}: This creature fights another target creature.

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.) Whenever Donna Noble or a creature it's paired with is dealt damage, Donna Noble deals that much damage to target opponent. Doctor's companion (You can have two commanders if the other is the Doctor.)

Equipped creature gets +2/+0 and has reach. Whenever equipped creature is dealt damage, it deals damage equal to its power to target player or planeswalker. Equip {2}{R}

Indestructible Whenever this creature attacks, blocks, or becomes the target of a spell, it deals damage equal to its power to each opponent. {5}: Monstrosity 5. (If this creature isn't monstrous, put five +1/+1 counters on it and it becomes monstrous.)

Haste Whenever this creature is dealt damage, it deals that much damage to any other target. If a player is dealt damage this way, they can't gain life for the rest of the game.

Whenever this creature is dealt damage, it deals that much damage to any target.

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

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

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

{T}: Add one mana of any color that a land an opponent controls could produce.

({T}: Add {G}.)

({T}: Add {R}, {G}, or {W}.) This land enters tapped. Cycling {3} ({3}, Discard this card: Draw a card.)

This land enters tapped. {T}: Add {R}, {G}, or {W}.

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

({T}: Add {R}.)

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

({T}: Add {W}.)

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

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

{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Mountain, Forest, or Plains card, put it onto the battlefield tapped, then shuffle. Cycling {R}{G}{W} ({R}{G}{W}, Discard this card: Draw a card.)

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

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

Enrage — Whenever this creature is dealt damage, untap target permanent.

Enchant creature Whenever enchanted creature deals damage, this Aura deals that much damage to that creature.

Creature spells you cast cost {1} less to cast. Whenever another creature you control enters, this creature deals 2 damage to it. If a Dinosaur is dealt damage this way, this creature gets +2/+0 until end of turn.

Choose one — • Boros Charm deals 4 damage to target player or planeswalker. • Permanents you control gain indestructible until end of turn. • Target creature gains double strike until end of turn.

Choose a creature or planeswalker you control. All damage that would be dealt this turn to you and permanents you control is dealt to the chosen permanent instead (if it's still on the battlefield).

Enchant creature All damage that would be dealt to you is dealt to enchanted creature instead.

Whenever you cast a creature spell, draw a card.

Defender, flying Whenever this creature is dealt damage, you and target opponent each draw a card.

Other creatures have "Whenever this creature attacks, you may have it fight Grothama, All-Devouring." When Grothama leaves the battlefield, each player draws cards equal to the amount of damage dealt to Grothama this turn by sources they controlled.

Whenever a nontoken creature you control enters, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.

Whenever Hans Eriksson attacks, reveal the top card of your library. If it's a creature card, put it onto the battlefield tapped and attacking defending player or a planeswalker they control. Otherwise, put that card into your hand. When you put a creature card onto the battlefield this way, it fights Hans Eriksson.

Enchant creature Whenever enchanted creature deals damage to an opponent, you may draw a card.

Whenever one or more creatures you control fight or become blocked, draw a card. At the beginning of combat on your turn, you may pay {2}{R/G}. If you do, double target creature's power until end of turn. That creature must be blocked this combat if able. ({R/G} can be paid with either {R} or {G}.)

Choose one — • Draw cards equal to the greatest power among non-Human creatures you control. • Non-Human creatures you control get +3/+3 until end of turn.

Enrage — Whenever this creature is dealt damage, draw a card.

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

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

Whenever a creature you control enters, it fights up to one target creature you don't control with the same mana value. {T}: Create a Treasure token. Activate only if you control a creature that fought this turn.

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Creatures you control get +1/+0. +1: Add {R} or {G}. Creature spells you cast this turn can't be countered. −2: Target creature you control fights target creature you don't control.

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

{T}: Add one mana of any color that a land an opponent controls could produce.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Enrage — Whenever this creature is dealt damage, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

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

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