Flying
Whenever a Dragon you control becomes the target of a spell or ability an opponent controls, destroy target nonland permanent that player controls.

: Each opponent loses 1 life. You gain life equal to the life lost this way.

This creature enters with a +1/+1 counter on it.
, Remove a counter from a permanent you control: Search your library for a Plains card and reveal it. If an opponent controls more lands than you, you may put that card onto the battlefield tapped. If you don't put the card onto the battlefield, put it into your hand. Then shuffle.

When this creature enters, each player who controls fewer lands than the player who controls the most lands searches their library for a number of basic land cards less than or equal to the difference, puts those cards onto the battlefield tapped, then shuffles.

When this creature enters, if you cast it from your hand, create a 1/1 white Bird creature token with flying, then populate.

Flying
Keen Sight — When this creature enters, if an opponent controls more lands than you, search your library for a basic Plains card, put it onto the battlefield tapped, then shuffle.

Flying
: Target creature can't block this creature this turn.

: Creatures you control get +1/+1 until end of turn.

This spell costs less to cast for each creature you attacked with this turn.
When this creature enters, draw a card.

Whenever you attack with three or more creatures, this creature gets +2/+0 until end of turn.

When this creature enters, you take the initiative.
Whenever you attack, target attacking Cleric, Rogue, Warrior, or Wizard gains protection from creatures until end of turn. It explores.

Discard a card: Tap this creature. It gains indestructible until end of turn.

Whenever this creature attacks, you may tap target creature.

, Exile the top four cards of your library: The next time a source of your choice would deal damage to you this turn, prevent that damage.

Whenever this creature attacks while you control a token, this creature gets +2/+0 until end of turn.

When this creature enters, choose one —
• Put a +1/+1 counter on target artifact or creature you control.
• Transform target Incubator token you control.

Prowess
Whenever you cast a noncreature spell, this creature gains lifelink until end of turn.

Flying, vigilance

Flash
When this creature enters, you gain protection from the color of your choice until end of turn.

: Regenerate this creature.

, Sacrifice this creature: Creatures you control get +1/+1 until end of turn.

: Exile target creature card from a graveyard. That card deals damage equal to its power to this creature.

Exile this creature: Creatures you control gain indestructible until end of turn.

This creature enters with a +1/+1 counter on it.
When this creature leaves the battlefield, put its +1/+1 counters on target creature you control.

Whenever a Samurai or Warrior you control attacks alone, it gains lifelink until end of turn.
Sacrifice this creature: Another target creature you control gains indestructible until end of turn.

Sacrifice this creature: Another target creature you control gains indestructible until end of turn.

Flying
Sacrifice this creature: Creatures you control gain indestructible until end of turn.

Flash
When this creature enters, prevent all damage that would be dealt to you this turn.
Whenever damage that would be dealt to you is prevented, put that many +1/+1 counters on this creature.

When this creature enters, create a 1/1 white Bird creature token with flying.