Mysterious Mime used Shift Gear
Overall not bad, and it should gain you some cards
Zell Dincht does much the same as that, except it doesnt stop you from missing your regular land drops at the same time
The first counter allows Urzas Saga to tap for colourless mana, the second adds an ability you can pay two for to put a 0/0 Construct into play that gets +1/+1 for each artifact you control, and the final ability lets you search your library for an artifact with a mana cost of 0 or 1 and then put it straight into play
That latter ability is excellent for pushing a lot of damage, if there aren't a lot of colorless artifact creatures around
Unfortunately, this amounts to only a handful of cards, which means Don Andres is often going to be a do-nothing card