It only happens once a turn but can give you double the activations on your abilities, which is pretty darn good given the number of Elves that produce mana
This creature-type-soup of a card can sneak onto the battlefield and turn all your ninjas deadly with deathtouch extremely cheaply
As a result, a proper Knight deck has become a reliable creature type for you to build around
Whether you plan to sneak this in with a Collector's Cage, reanimate it with a Zombify, or just use a bunch of elves and Elvish Archdruid, this isn't a card you expect to play fairly
For my money, this is a nice payoff with some big upside, but having the downsides of needing to connect without any built-in evasion plus relying on your opponent picking a good thing for you to reanimate makes this too difficult to use
Cards with hexproof, shroud, indestructible, protection, and ward are notoriously difficult to remove from the battlefield