Dehaka's wardens and hatcheries can uproot and attack; but they do stop regenerating life when they uproot but me and my friend (@Victoree ) discovered that Kerrigan's malignant creep actually heals the uprooted structures. So uprooted structures are, in a way, both a unit and not a unit. So far we've tested the wardens in a few games with various commanders. So here's some of the things I've learned:

• Abathur's mend can heal wardens

• Stetellites speed boost does not apply but the healing does work for the wardens

• Stetellite overcharge does not work, including the shields from the H.U.G.S. protocol

• Malignant creep heals

• Wardens can't pick up parts for the Balius

• Wardens can't Rak'shir

• Structures don't get selected with the all-army hotkey

The wardens have 400 HP, 22-ish DPS they only take up 2 supply and they only cost 200 minerals. Uprooted structures phase through friendly ground units (that aren't sieged up siege tanks) An important thing to note is that they only have 1 structure carapace so they do get squished by aberrations and other anti-armor units. Another thing to mention is that even though they suffer heavily from the damage output of anti-armor units they still get squished by units such as colossi which are anti-light. While me and my friend were playing some games we've came up with a strategy where I occasionaly rooted my wardens and made them produce zerglings to agro the enemy units which worked out surprisingly well. (Here are some screenshots from the absolute tomfoolery we've been doing) (edited)