Currently we only have two cards that can keep one from decking out, eternity and reverse time. Due to the recent changes, these methods aren't as affective. So I think we need a new card and/or ability that allows us to not deck out.
I think this card should be a weak creature which is easily killed. This way it can be countered as long as the opponent has a way to counter it and the user hasn't immortalized it. The important part is the ability. It would be cheap, perhaps two quanta instead of the expensive three used by eternity. What it does is create a new card at the top of your deck. This card is a 0/0 creature, specifically meant to keep yourself from decking out.
Another method would be to make a card (like an alchemy card) that gives this ability to a creature you possess. The card would be expensive since I think the ability should be cheap, and the quanta required to cast would depend on the creatures type, similar to mutations.
Lastly, this ability could be accessed through mutation, so a person could get lucky and get it on the off chance they would deck out otherwise.
It doesn't make much of a difference what the ability is called... probably something having to do with the 0/0 creature created.