Cheapest priced copy (Secrets of Strixhaven): $0.35 at Card Kingdom, near mint, their price list as of .
Deluge Virtuoso 
Creature — Human Wizard · 2/2 · Common · Secrets of Strixhaven · #42
When this creature enters, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Opus — Whenever you cast an instant or sorcery spell, this creature gets +1/+1 until end of turn. If five or more mana was spent to cast that spell, this creature gets +2/+2 until end of turn instead.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Secrets of Strixhaven | 42 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 20 March 2026An opus ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered or otherwise leaves the stack.