Summary: Set.3 is out except in North America. I still do not have any of my Set.3 cards yet. So this unit is from Japanese forum site. At the first glance, it was thought of as the least useful ritual, Theraclave Tollagate, has quite bit of potential. Here is one example unit using it.
How does this Unit work?
It turns out that Tollgate really blocks all the mana gain but the mana phase. This applies to exit mana, Goghlie Altar mana as well. So use this first and then use Altar during the same turn. This will ensure only you get mana, but not the opponent. Additionally, you get more buck by destroying enemy creatures with the mana that you gained because no exit mana will be produced from those creatures destroyed during this turn. (even the Novogus Catapalt)
Related Link: Concept of “Unit”