Name:Invasion of Karsus
ManaCost:2 R R
Types:Battle Siege
Defense:4
T:Mode$ ChangesZone | ValidCard$ Card.Self | Origin$ Any | Destination$ Battlefield | Execute$ TrigDamage | TriggerDescription$ When CARDNAME enters, it deals 3 damage to each creature and each planeswalker.
SVar:TrigDamage:DB$ DamageAll | ValidCards$ Creature,Planeswalker | NumDmg$ 3
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 Karsus enters, it deals 3 damage to each creature and each planeswalker.

ALTERNATE

Name:Refraction Elemental
ManaCost:no cost
Colors:red
Types:Creature Elemental
PT:4/4
K:Ward:PayLife<2>
T:Mode$ SpellCast | TriggerZones$ Battlefield | ValidActivatingPlayer$ You | Execute$ TrigDamage | TriggerDescription$ Whenever you cast a spell, CARDNAME deals 2 damage to each opponent.
SVar:TrigDamage:DB$ DealDamage | Defined$ Opponent | NumDmg$ 2
DeckHints:Type$Instant|Sorcery
Oracle:Ward—Pay 2 life.\nWhenever you cast a spell, Refraction Elemental deals 2 damage to each opponent.
