If both me and opponent control a Consecrated Sphinx, what would happen when I draw?
If both me and opponent control a Consecrated Sphinx, what would happen when I draw?
Then your opponent may draw 2.
Then you may draw 2 or 4.
Then your opponent may draw 2, 4, 6, or 8.
This continues until someone decides not to draw.
Fluttershy is best pony.
but the comprehensive rules say:
614.5. A replacement effect doesn’t invoke itself repeatedly and gets only one opportunity for each
event.
Example: A player controls two permanents, each with an ability that reads “If a creature
you control would deal damage to a creature or player, it deals double that damage to that
creature or player instead.” A creature that normally deals 2 damage will deal 8 damage—
not just 4, and not an infinite amount.
So wouldnt each consecrated sphinx trigger only once?
No, because it's not a replacement effect, it's a triggered ability (as you just said).
Fluttershy is best pony.
are you allowed to count how many cards you have left in your library before deciding if to draw or not
Yes. Any player can count the remaining cards in any player's library at any time (provided they don't look at/rearrange the cards, of course).
Fluttershy is best pony.
My ruling is:
If each player controls a Consecrated Sphinx, their abilities will cause each other to trigger until one player chooses not to draw cards.