First printed in Strixhaven: School of Mages (2021)
Guiding Voice 
Sorcery
Put a +1/+1 counter on target creature.
Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)
MTGO price: 0.002 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
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