You control a white creature without a -1/-1 counter on it.
({2} magic symbol) available.
Steps
Activate Antler Skulkin by paying ({2} magic symbol) , giving a white creature you control persist until end of turn.
Activate Ashnod's Altar by sacrificing the white creature, adding ({C} magic symbol) ({C} magic symbol) .
When the creature dies, its persist ability triggers, returning itself from your graveyard to the battlefield with no -1/-1 counters on it due to Melira.