This one is the hardest to beat since it comes down as early as turn 2 and shuts off lots of your mana and most of your relevant threats
Its not for every Cube, but its a banger where appropriate
This allows phasing cards to keep counters, auras, and equipment attached to them when they phase back in
This deck was printed at home using high quality sticker paper which was then cut to the card dimensions and glued onto the front of original magic cards, this means the cards have an original mtg back, while showcasing the unique designs
If you play it and then sacrifice it, the effect pretty much pays for itself, allowing it to act as a mana bank, or you can reanimate it to Treasure over and over
A sophisticated enough RNN could create entire expansions with new mechanics