This thread at themanadrain is also a great resource and it includes lists of card choices for the stack along with commentary:
So, what is Type 4 (Limited Infinity)?
- Each player has infinite mana of all types, at all times.
- Each player may play only one spell per turn.
A common stack of cards is used to play, similar to Cube Drafting. The stack can be drafted in any of the ways that players draft in other formats, split up evenly and distributed randomly, or even shared as a common library.