Rite of Flame

Add for each Goblin on the battlefield.

Add for each creature you control.

Add for each nonland permanent with art by the artist of your choice.

As an additional cost to cast this spell, sacrifice a creature.

Add .

This creature has firebending 2 as long as there's a Lesson card in your graveyard. (Whenever this creature attacks, add . This mana lasts until end of combat.)

: This creature gets +1/+0 until end of turn.

Mill four cards. Whenever a creature attacks this turn, it gets +1/+0 until end of turn for each creature card put into your graveyard this way.