Is Surge of Strength legal in Standard, Modern, and Commander?

Surge of Strength is legal in: Legacy, Vintage, Commander.

What type of card is Surge of Strength?

Surge of Strength is an Instant. Its oracle text reads: "As an additional cost to cast this spell, discard a red or green card.Target creature gains trample and gets +X/+0 until end of turn, where X is that creature's mana value."

Surge of Strength

Instant

As an additional cost to cast this spell, discard a red or green card.<br>Target creature gains trample and gets +X/+0 until end of turn, where X is that creature's mana value.

Set Alliances

Rarity Uncommon

Artist Ruth Thompson