In one of my recent games I played Moonlit Basilysk. My opponent immediately answered with Lasting Judgement. To my big surprise, the spell killed my sentinel.
I watched a replay to get some more clues. The order of events I derived from the animation seems to be:
- Lasting Judgement is played
- Moonlit Basilysk transforms
- Lasting Judgement’s effect is applied, giving +3/-3 - so that for a moment Basilysk’s stats are displayed as 8/2 - which is to be the expected result, as 2/2 (basic stats) + 3/3 (spell buff) + 3/-3 (spell effect) = 8/2
- Lasting Judgement’s effect seems to be applied for a second time on an already 8/2 Basilysk. Showing +3/-3 once again, and killing the minion in the process
I’m not the first player to have experienced this. One of the players commenting on this thread also claims that it happened to him, so I believe it is a bug that needs to be repaired.