Stern Lesson is a common Instant card from Magic: The Gathering (The Brothers' War, BRO). Current market price: $0.17.
Common
The Brothers' War (BRO)
{2}{U}
Mana Value
3
Colors
U
Card Text
Draw two cards, then discard a card. Create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")
