Played a few games with this version of the Taskmaster card from the Guilds contest (I don't know who designed this card- it isn't mine). This version isn't the original, but I think it was suggested in the contest thread IIRC. Or maybe I just tweaked it. I don't remember.
Taskmaster
$4 Action
Choose and turn sideways one unturned card on the Taskmaster mat. This is that card until it leaves play. Whenever there are 4 or more sideways cards on the mat, return them all to normal position. | Setup: Put the randomizers for 5 cards each costing up to $4 on the Taskmaster mat face-up.
The first game we played with it, it really seemed overpowered (and similar to Band of Misfits). So after the first game we changed the setup to use 5 cards costing up to $3. After that tweak, we agreed it's a balanced and fun card (although there was some AP when deciding which card to play it as).