First printed in The Brothers' War (2022)
Stern Lesson 
Instant
Draw two cards, then discard a card. Create a tapped Powerstone token. (It's an artifact with "
: Add 
. This mana can't be spent to cast a nonartifact spell.")
MTGO price: 0.002 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
In the last 30 days 0.0% of Commander decks played it (1 of 6150). Most played in The Cyber-Controller.
Legality
Constructed
- Standard Not legal
- Pioneer Legal
- Modern Legal
- Legacy Legal
- Vintage Legal
- Pauper Legal
- Future Standard Not legal
- Historic Legal
- Timeless Legal
- Alchemy Not legal
- Penny Dreadful Not legal
- Premodern Not legal
- Old School 93/94 Not legal
Singleton
- Gladiator Legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Legal
- PreDH Not legal
- Tiny Leaders Legal
- Oathbreaker Legal
- Brawl Legal
- Standard Brawl Not legal
- Competitive Brawl Legal
