Cradle of Vitality and Walking Archive on the battlefield.
Your life total is equal to or greater than the largest deck size among your opponents minus (one plus the number of +1/+1 counters on Walking Archive).
Cast Beacon of Immortality by paying ({5} magic symbol) ({W} magic symbol) , doubling your life total and shuffling it into your library.
Cradle of Vitality triggers, causing you to pay ({1} magic symbol) ({W} magic symbol) to put a number of +1/+1 counters on Walking Archive equal to the life you gained.
At the beginning of the next upkeep, Walking Archive triggers, causing the active player to draw cards equal to the number of +1/+1 counters on Walking Archive.
If the player attempts to draw from an empty library, they lose the game.
If they didn't lose the game, the player will attempt to draw a card during their draw step and lose the game due to attempting to draw from an empty library.
Repeat from step 3 for each remaining opponent.
Results
Each opponent loses the game at the beginning of their next upkeep.