[bow_]

There is indeed no limitation on the number of tokens in a game.

There are many combo wins that involve having (technically) infinite tokens, dealing infinite damage, gaining infinite life, taking infinite turns. You get the idea.

I said technically because in practice, setting this to a very large number is enough for the win. Dealing 1e6 damage is, although possible, already way overkill in most cases when your opponent starts with 20 life.

[rcxdude]

Though you do need to pick a number. The paper itself describes a game state which devolves into the 'the player who picks a larger number wins', and even gaining a large but finite amount of life can be dangerous if you don't go large enough (I have heard of a specific example of someone gaining arbitrary life, picking a google, and then losing by have their life reduced to zero through a series of losses of half their life).