Name:Invasion of Tarkir
ManaCost:1 R
Types:Battle Siege
Defense:5
T:Mode$ ChangesZone | Origin$ Any | Destination$ Battlefield | ValidCard$ Card.Self | Execute$ TrigReveal | TriggerDescription$ When CARDNAME enters, reveal any number of Dragon cards from your hand. When you do, CARDNAME deals X plus 2 damage to any other target, where X is the number of cards revealed this way. (X can be 0.)
SVar:TrigReveal:DB$ Reveal | RevealValid$ Card.Dragon+YouOwn | AnyNumber$ True | RememberRevealed$ True | SubAbility$ DBImmediateTrig
SVar:DBImmediateTrig:DB$ ImmediateTrigger | Execute$ TrigDamageBis | RememberObjects$ Remembered | SubAbility$ DBCleanup | TriggerDescription$ When you do, CARDNAME deals X plus 2 damage to any other target, where X is the number of cards revealed this way. (X can be 0.)
SVar:TrigDamageBis:DB$ DealDamage | ValidTgts$ Creature.Other,Player,Planeswalker.Other,Battle.Other | TgtPrompt$ Select any other target | NumDmg$ X
SVar:DBCleanup:DB$ Cleanup | ClearRemembered$ True
SVar:X:TriggerRemembered$Amount/Plus.2
DeckHints:Type$Dragon
AlternateMode:DoubleFaced
Oracle:(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)\nWhen Invasion of Tarkir enters, reveal any number of Dragon cards from your hand. When you do, Invasion of Tarkir deals X plus 2 damage to any other target, where X is the number of cards revealed this way. (X can be 0.)

ALTERNATE

Name:Defiant Thundermaw
ManaCost:no cost
Colors:red
Types:Creature Dragon
PT:4/4
K:Trample
K:Flying
T:Mode$ Attacks | ValidCard$ Dragon.YouCtrl | TriggerZones$ Battlefield | Execute$ TrigDamage | TriggerDescription$ Whenever a Dragon you control attacks, it deals 2 damage to any target.
SVar:TrigDamage:DB$ DealDamage | ValidTgts$ Any | NumDmg$ 2
Oracle:Flying, trample\nWhenever a Dragon you control attacks, it deals 2 damage to any target.
