So this one has a playable o/t for its mana cost.
But, in each case the ability is already in one of the two colors and doesn't need a third color to turn it on. I'll admit some one Wizards three-color cards are dubious on this themselves though imo. 1/4is a pretty respectable body for two, so maybe letting white turn on the lifelink is okay, even though black by itself can already grant lifelink.

For others, Hooligan Gang, green already has flash, no need for blue to grant it.
­Industrious Colliers- white already gets 3/1 at common, sometimes with an upside. For comparisons BR gets 3/1 with a keyword. I'm not saying that switch in power and toughness is necessarily bad, but on such a small body it is.
­Languid Wyrm- white and blue are the colors of flying. Red turning it on is weird since red it the only above green for flying, but it's a wyrm spirit so it's a bit flavorful and no card has been a 3/1 flyer before. The stat arrangement may make Languid Wyrm okay.