Ad Infinitum

Multikicker {w} (you may pay an additional {w} any
number of times as you cast this spell.)
You gain Shahrazad (All players must leave game
in progress and play a sub-game of Magic using the
cards left in their libraries. The loser of this sub-game
loses half of their life total rounded up. Repeat this for
each time Ad Infinitum was kicked.)
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Counter this spell or we will all regret it.....