Card: Ethereal Usher
Casting Cost: 5U
Color: Green
Type: Creature - Spirit
P/T: (2/3)
Rules Text: {U}, {T}: Target creature is unblockable this turn. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same converted mana cost as this card, reveal it, and put it into your hand. Then shuffle your library. Transmute only as a sorcery.)

Ravnica: City of GuildsUncommon