Anthem of the Party Rock

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)
Each player shuffles their library. You scry 3,
then each player reveals the top card of their
library. Each player who reveals a creature
card in this way may put it onto the battlefield,
creatures they control get +X/+0 and haste until
the end of turn where X is the revealed creature's
mana value. If a Bro is revealed by any player in
thi