Is Grab the Reins legal in Standard, Modern, and Commander?

Grab the Reins is legal in: Modern, Legacy, Vintage, Commander.

Grab the Reins

Q: What type of card is Grab the Reins?

Grab the Reins is an Instant. Its oracle text reads: "Choose one — • Until end of turn, you gain control of target creature and it gains haste. • Sacrifice a creature. Grab the Reins deals damage equal to that creature's power to any target. Entwine {2}{R} (Choose both if you pay the entwine cost.)"