I think Blockland needs a Retrieval Robot, simply stated.
Explained in detail:
This would be a robot with similar mobility and function of Bushido's RC Sapper Add-On (w/o explosion), and be a small RC Car that has a claw attatched to it that when it runs over an item or the claw activates/clicks the brick with the item, picks it up. Click again to re-deploy item (like Ctrl+W), right click to abort. If aborted within 5 studs radius of your player, it will give you the Robot back. Has 1 item slot. Pressing Q will allow the Robot to equip and use the item.
This I feel would be useful for foiling camping noobs or retrieving the flag in a CTF.
Edits made for clarification