Cheapest priced copy (Strixhaven: School of Mages): $0.35 at Card Kingdom, near mint, their price list as of .
Heated Debate 
Instant · Common · Strixhaven: School of Mages · #106
This spell can't be countered. (This includes by the ward ability.)
Heated Debate deals 4 damage to target creature or planeswalker.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Strixhaven: School of Mages | 106 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 16 April 2021If Heated Debate’s target is illegal (perhaps because it gained protection from red in response) when it tries to resolve, it will be removed from the stack and no damage will be dealt.