Cheapest priced copy (Commander 2016): $0.59 at Card Kingdom, near mint, their price list as of .
Parting Thoughts 
Sorcery · Uncommon · Commander 2016 · #15
Destroy target creature. You draw X cards and you lose X life, where X is the number of counters on that creature.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.59 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2016 | 15 | Uncommon | $0.59 | — |
3 rulings from Wizards of the Coast
- 8 November 2016Parting Thoughts counts every kind of counter on that creature. Effects such as that of Giant Growth, Auras, and Equipment aren’t counters.
- 8 November 2016Parting Thoughts can target a creature without any counters on it. You’ll lose no life and draw no cards.
- 8 November 2016If a creature has +1/+1 counters and -1/-1 counters on it, state-based actions remove the same number of each so that it has only one of those kinds of counters on it. There won’t be any counters of the other kind for Parting Thoughts to count.