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

({T}: Add {G}.)

This creature enters with X +1/+1 counters on it, where X is the greatest power among creatures you control and creature cards in your graveyard.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, another target creature you control gets +X/+X until end of turn, where X is this creature's power."

Whenever you cast a noncreature spell, target creature gets +X/+0 until end of turn, where X is that spell's mana value. Choose a Background (You can have a Background as a second commander.)

Trample When this creature enters, you take the initiative.

When this creature leaves the battlefield, you draw two cards and each opponent draws a card.

Target creature gains deathtouch until end of turn. Draw a card.

When this artifact enters, draw a card. {1}, {T}: Add one mana of any color.

Defender When this creature enters, you take the initiative. Mantle of Inspiration — {T}: Target creature gains menace and haste until end of turn.

Commander creatures you own have "At the beginning of your upkeep, exile the top card of your library. This creature gets +X/+0 until end of turn, where X is that card's mana value. You may play that card this turn."

Commander creatures you own have "The first Dragon spell you cast each turn costs {2} less to cast."

When this creature enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.) {T}: Add one mana of any color.

{T}: Add {R}. If that mana is spent on a Dragon creature spell, it gains haste until end of turn.

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

{T}: Add {G}. When you spend this mana to cast a Dragon creature spell, it enters with an additional +1/+1 counter on it and gains hexproof until your next turn. (It can't be the target of spells or abilities your opponents control.)

{T}: Add one mana of any color. {4}, {T}: Look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. If you don't put the card onto the battlefield, you may put it on the bottom of your library.

Sacrifice this creature: Add {R}{R}.

{T}: Add {G}. When you spend this mana to cast a Dragon creature spell, you gain 2 life.

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 token: Add one mana of any color.")

When this creature enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Whenever you attack, you may sacrifice one or more Treasures. When you do, up to that many target creatures gain double strike until end of turn.

Up to three target creatures can't block this turn. Goad them. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)

Earth Tremor deals damage to target creature or planeswalker equal to the number of lands you control.

This spell costs {1} more to cast for each target beyond the first. Fireball deals X damage divided evenly, rounded down, among any number of targets.

Lightning Bolt deals 3 damage to any target.

Infesting Spores — When this creature enters, destroy up to one target artifact or enchantment.