Emchompite notes that the tiny black circle at the bottom of the card signifies it has a common rarity
It's okay that Return of the WildspeakerReturn of the Wildspeaker costs five mana because you'll get the most use out of it later in the game, with a large creature on the battlefield and only a few cards (if any) left in your hand
Also included in Unstable was the "Rules Lawyer" card, which has a very thorough written effect that, true to the card's name, encourages the players to engage in Loophole Abuse
In other words, the ability won't trigger if the creature with the ability is the second spell you cast during a turn or if you have already cast two or more spells by the time that creature enters the battlefield that turn
Verifiable odds: Published, checkable pull rates beat any marketing claim
Well worth the slot in many decks, especially if youre looking for tools to close a game