He is also fairly broad unlike a lot of the more interesting cards for deck design and so while he is not a must have for a cube he is a good way to make things more complex and interesting
Pendulum Monsters are kept in the main deck and always count as a Monster Card while in the main deck or graveyard, but when played in the Pendulum zones, their Pendulum effects are activated, and their Monster effects cannot be used
Seriously, if the first exposure most people had to Magic was Bottle Gnomes, the game would have 100% retention
Weathered Sentinels Weathered Sentinels might be my favorite wall design
When you combine it with Counterbalance, you get a double whammy of sorts: a time thief that also soft-locks your opponent
The Silver-Bordered Project is supposed to provide clearer guidance for the Magic the Gathering community when making judgement calls about whether or not to include cards in casual games