Is Recantation legal in Standard, Modern, and Commander?

Recantation is legal in: Legacy, Vintage, Commander.

What type of card is Recantation?

Recantation is an Enchantment. Its oracle text reads: "At the beginning of your upkeep, you may put a verse counter on this enchantment. {U}, Sacrifice this enchantment: Return up to X target permanents to their owners' hands, where X is the number of verse counters on this enchantment."