The Infinite Multiverse

Whenever another permanent enters the battlefield, you may pay {1}. If you do, draw a
card, then discard a card.
"How do I explain it... my latest research shows that
there are so many more multiverses, each of them containing you and I, except different. For every choice
we make there are a number of other choices we could
have made, and for each of those choices, there seems
to be another universe and for each choice made in
those universes, it duplicates again. Get it?" -Tamiyo