When it's tapped you can gain life and then tap it with two to reload a card from anyone's library to the bottom of their library
Whites got several effects that buff the toughness of creatures like Lumithread Field and Builder's Blessing that help your toughness matter and hit even harder
And frankly, considering there really isn't a budget replacement, if you're losing games because of Dockside, I could see being very annoyed by the card
Situational cards like [c]Plummet[/c], or cards that only work against certain strategies, are tempting because they have the potential to be great
You can also set up all of the damage but not challenge, then shift Robin Hood Sneaky Sleuth on top for good lore gain
Pair it with cards like Cathars' Crusade, and those small creatures turn into game-ending pressure before opponents have time to stabilize