Lucretia, Prey's Muse

Flying, Vigilance, Haste
Other creatures with +1/+1 counters must attack
the opponent with the highest life total.
{t}: Lucretia, Prey's Muse gains indestructible
and fights target creature an opponent controls.
Put a +1/+1 counter on Lucretia and target
creature at the beginning of the next end step.