Is Soul Echo legal in Standard, Modern, and Commander?

Soul Echo is legal in: Legacy, Vintage, Commander.

Soul Echo

Q: What type of card is Soul Echo?

Soul Echo is an Enchantment. Its oracle text reads: "Soul Echo enters with X echo counters on it.You don't lose the game for having 0 or less life.At the beginning of your upkeep, sacrifice Soul Echo if there are no echo counters on it. Otherwise, target opponent may choose that for each 1 damage that would be dealt to you until your next upkeep, you remove an echo counter from Soul Echo instead."

Enchantment

Soul Echo enters with X echo counters on it.<br>You don't lose the game for having 0 or less life.<br>At the beginning of your upkeep, sacrifice Soul Echo if there are no echo counters on it. Otherwise, target opponent may choose that for each 1 damage that would be dealt to you until your next upkeep, you remove an echo counter from Soul Echo instead.

Set Mirage

Rarity Rare

Artist Ron Spencer