Cheapest priced copy (Commander 2015): $0.49 at Card Kingdom, near mint, their price list as of .
Wretched Confluence 
Instant · Rare · Commander 2015 · #23
Choose three. You may choose the same mode more than once.
• Target player draws a card and loses 1 life.
• Target creature gets -2/-2 until end of turn.
• Return target creature card from your graveyard to your hand.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2015 | 23 | Rare | $0.49 | — |
| Commander Anthology | 74 | Rare | $0.49 | — |
| Commander Masters | 200 | Rare | $0.49 | $0.49 |
| Commander Masters | 527 | Rare | — | — |
6 rulings from Wizards of the Coast
- 4 November 2015If a mode requires a target, you can select that mode only if there’s a legal target available. Ignore the targeting requirements for modes you don’t choose. Each time you select that mode, you can choose a different target, or you can choose the same target.
- 4 November 2015No matter which combination of modes you choose, you always follow the instructions of a Confluence in the order they are written. If the same mode is chosen more than once, you choose their relative order as you cast the spell.
- 4 November 2015If a Confluence is copied, the effect that creates the copy will usually allow you to choose new targets, but you can’t choose new modes.
- 4 November 2015You choose the modes as you cast the spell. Once modes are chosen, they can’t be changed.
- 4 November 2015If all targets for the chosen modes become illegal before the Confluence resolves, the spell won’t resolve and none of its effects will happen. If at least one target is still legal, the spell will resolve but will have no effect on any illegal targets.
- 4 November 2015No player can cast spells or activate abilities in between the modes of a resolving spell.