name=Yahenni's Expertise
image=https://magiccards.info/scans/en/aer/75.jpg
value=2.500
rarity=R
type=Sorcery
cost={2}{B}{B}
timing=main
requires_groovy_code
oracle=All creatures get -3/-3 until end of turn.\nYou may cast a card with converted mana cost 3 or less from your hand without paying its mana cost.
