That kind of low-risk, high-reward proposition means these Virtues are going to see play anywhere that the enchantment side is valuable, and the most widely-valuable one for Standard is Virtue of Loyalty
Sure, you dont get to play the top card of your library, but being able to ensure every land in play is a Mountain for Valakut, the Molten Pinnacle
Now if we move from on-its-face traditional counting to the more accurate world of interactive Magic, Loxodon sometimes generates card advantage
Chameleon, Master of Disguise is also an interesting and powerful card, which uses the perfect template for clones: retaining its original name
Id imagine that this is too slow for aggro decks, and midrange/control decks would rather run finishers that are better top decks