Yannic, the reasonable

Eminence — At the beginning of combat on
your turn, if Yannic, the reasonable is in the
command zone or on the battlefield, you can put
a creature from your graveyard on the field under
your control tapped and attacking with converted
mana cost equal to another attacking creature you control. Sacrifice it at the end of combat.
Whenever you sacrifice a creature, Surveil 2.
"the longer you listen the fairer it sounds"