Lonely Sandbar - Commander 2014 (Common) [C14-304]

Lonely Sandbar is a land that comes into play tapped, meaning you can't use it for mana until your next turn. When you do tap it, it can provide one blue mana ({U}), which can be useful for casting spells in a blue deck. Additionally, it has a cycling ability that lets you pay one blue mana and discard the Sandbar to draw a card, giving you a way to replace it in your hand if you don't need the mana or if you have better options available. The downside is that entering tapped can slow you down early in the game, and it's not particularly useful if you need immediate mana. However, it can help smooth out your draws later on.