Cheapest priced copy (Foundations): $0.35 at Card Kingdom, near mint, their price list as of .
Mindsparker 
Creature — Elemental · 3/2 · Uncommon · Foundations · #628
First strike (This creature deals combat damage before creatures without first strike.)
Whenever an opponent casts a white or blue instant or sorcery spell, this creature deals 2 damage to that player.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations | 628 | Uncommon | $0.35 | — |
| Magic 2014 | 146 | Rare | $0.49 | $0.49 |
2 rulings from Wizards of the Coast
- 8 November 2024Mindsparker's last ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered or otherwise leaves the stack without resolving.
- 8 November 2024If an opponent casts a spell that's both white and blue, Mindsparker's last ability triggers only once.