Cheapest priced copy (Commander 2016): $0.49 at Card Kingdom, near mint, their price list as of .
Frenzied Fugue 
Enchantment — Aura · Uncommon · Commander 2016 · #18
Enchant permanent
When this Aura enters and at the beginning of your upkeep, gain control of enchanted permanent until end of turn. Untap that permanent. It gains haste until end of turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2016 | 18 | Uncommon | $0.49 | — |
| The List | C16-18 | Uncommon | $0.49 | — |
2 rulings from Wizards of the Coast
- 8 November 2016The triggered ability triggers both when Frenzied Fugue enters the battlefield and at the beginning of your upkeep. You don't have to choose only one.
- 8 November 2016You won't control the enchanted permanent as your upkeep begins. Any "at the beginning of your upkeep" abilities it has won't trigger during your upkeep (unless you already controlled the permanent). Similarly, if you have an "at the beginning of your upkeep" ability that targets a permanent you control, that ability can't target it.