To be honest it’s hard to say. Duelyst bugs are fairly tame compared to other games I’ve played in the past.
If I recall correctly, a Vetruvian player used Falcius and for some reason their general stayed invincible the rest of the game. Another player reported being provoked for an entire match despite there being no provoke minion next to him.
We also get reports on funny situations that could be bugs but aren’t. As an example, Bloodsworn Gambler occasionally gets reported for attacking an obscene amount of times. I wish I were that lucky!
(add me plz cause im lazy) 
