Call Me Maybe?

Tempo (The first spell with Tempo that you cast each
turn costs {2} less if you cast a spell with Tempo since
the beginning of your last turn)
You and target opponent each put a permanent
from their hand onto the battlefield, or reveal a
hand with no permanents. If two permanents that
share a card type do not enter the battlefield in
this way, put this card on top of your library.
Hey, I just met you, and this is crazy; but here's my number, so call me, maybe?