The prices of these cards may fluctuate over time and do not include serialized cards, which are rarer and harder to track
Regarding +1/+1 counters , there's tons of cards that specifically hinge on that mechanic, represented in all 5 mana colors
The fantasy world of Magic is by no means exempt
To get around this restriction, its a good idea to play backup cards that are functionally similar to your win condition
Just take the 22,630 total unique cards in Gatherer, and multiply that by the number of different printings per card, like the 10 versions of Remove Soul. That gets you to a total of roughly 49,998 total unique printings
For your troubles, this card also forces players to lose life at the beginning of their upkeep, furthering this cards efforts of ending the game ASAP