Looks less skill and more super lucky god hand.
"Deck working exactly how they’re supposed to."
Look at the mana count and deck size. Played 3 cards in 3 turns then goes 4th turn lethal.
You can guess what Reva played.
Cresent Spear, Abjudicator and Rokadoptera.
One of the Pheonix Fire drawn after playing Abjudicator.
Only one Cresent charge gone but took 9 damage. Too much damage to be one hit so must be on 3rd turn.
Therefore was 1st turn nothing, 2nd turn minion, 3rd turn Cresent + other minion.
Having more difficulties guessing Cass though.
Moved forward twice and once diagonally.
2 creep tiles. Must be 2 spheres.
30/40 deck = 10 cards drawn. 5 start + 3 turns + 2 spheres = 10.
Mana tile is gone. Some minion summoned by on it that got traded later. Couldn’t be Reva since too far to walk back within 3 turns. Cass also couldn’t stand on tile to get to position.
6 attack. Double Spectral Blade. (Could be Spectral Blade + Azalea though a tad cost inefficient.)
4/6 hand size. 5 start + 3 turns = 8. So minus 4 cards ignoring cantrip spheres.
2 Spectral Blades, 1 minion on tile, Cass must have played 1 more card.
Somehow inflicted 9 damage on Reva. Since Reva equipped Cresent 3rd turn, Cass damaged Reva once on the 3rd turn. That once couldn’t be a Cass attack since full health.
That is as much as I can figure out.
Somehow inflicted 9 damage on Reva, cleared the board, stayed at full health and equipped with healing artifacts. Then dies. Cass poor skill .
Anyway quite fun analyzing the board and trying to guess what happened .
Should really go to sleep now zzz…