Is Dragon Whelp legal in Standard, Modern, and Commander?

Dragon Whelp is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Dragon Whelp

Q: What type of card is Dragon Whelp?

Dragon Whelp is a Creature — Dragon. Its oracle text reads: "Flying{R}: Dragon Whelp gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice Dragon Whelp at the beginning of the next end step."

Creature — Dragon

Flying<br>: Dragon Whelp gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice Dragon Whelp at the beginning of the next end step.

Set Limited Edition Alpha

Rarity Uncommon

Artist Amy Weber