This version seems to need some tuning:
The AI doesn't rate own minions high enough and suicides them lightly (likely two for one),
not using spells in hand to remove enemy minions or buffing smaller minions to trade better
(not using shattered sun cleric or defender of argus or other buffs before attacking).
This was better in old versions ...
Other things that i saw:
Constantly not placing new minions next to dire wolf alpha, silencing shieldmaster before
killing him, suiciding better minion (4/4) instead of smaller 4/3, buffing minions after attack,
using coin on first turn without using it, using mortal coil before killing with big enough minion,
unnecessarily limiting the already existing cards in hand because of life tapping (e.g. rendering
a removal spell not usable and leaving a big enemy minion on board).
One thing concerning bot detection: the bot tries to attack with not ready minions almost every
turn (regularly with minions that he attacked with right before). I think this can be seen by the
enemy and is not human like, at least not when occurring that often.
But: Keep up the good work :-)