So the basic idea is to put as many fire bombs in enemy's deck and trigger nighfall, Nyctophonia helps along.
To add: 4 x
Light the Fuse, 2 x
Coalscrounger
Being 4 colors is hard, thinking about cutting time, but then I lose
Lunar Magus,
Nocturnal Creeper and
Duskwalker. Duskwalker particularly enables Miris' ult earlier.
Considering cuts:
Rain of Frogs
If you didn't know
Encroaching Darkness triggers
Grenadin Cannoneer's spark. I didn't know until today.
Playing casual with this iteration (don't have all the cards, more specifically
Light the Fuse) got the achievement for killing an opponent with firebomb - he drew 2 in a row and got 2 nightfall damage .
Any suggestions for imrovements are welcome