Is Soulshriek legal in Standard, Modern, and Commander?

Soulshriek is legal in: Legacy, Vintage, Commander, Pauper.

Soulshriek

Q: What type of card is Soulshriek?

Soulshriek is an Instant. Its oracle text reads: "Target creature you control gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard. Sacrifice that creature at the beginning of the next end step."

Instant

Target creature you control gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard. Sacrifice that creature at the beginning of the next end step.

Set Mirage

Rarity Common

Artist John Bolton