Azorius Herald

Creature - Spirit 2/1, 2W (3)
Azorius Herald is unblockable.
When Azorius Herald enters the battlefield, you gain 4 life.
When Azorius Herald enters the battlefield, sacrifice it unless {U} was spent to cast it.¹
"As peace should be-gentle yet unstoppable."
-Augustin IV
Illus. Justin Sweet

Gatherer Card Rulings [Nov 2009]

• 5/1/2006: If this enters the battlefield in a way other than announcing it as a spell, then the appropriate mana can’t have been paid, and you’ll have to sacrifice it.  

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/9)	Dissension (Uncommon)