Blasting Station | First Day of Class (and one other card)

Persist Creature

Cards

First Day of Class in hand.
Blasting Station and Persist Creature on the battlefield (Persist Creature without a -1/-1 counter on it).

Cast
First Day of Class by paying ({1} magic symbol) ({R} magic symbol) .
Activate
Blasting Station by tapping it and sacrificing the Persist Creature.
When the Persist Creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
When the Persist Creature enters,
Blasting Station and
First Day of Class trigger.
Resolve the
First Day of Class trigger, putting a +1/+1 counter on the Persist Creature.
Resolve the
Blasting Station trigger, untapping it.
Resolve the
Blasting Station ability from step 2.
Repeat from step 2.

This combo has been estimated to be Exhibition (Bracket 1+).