Putting aside that the other factions also received badly conceived OP cards. One of the issues is that these cards gain value whilst in the graveyard. Which leads to yet more OP interactions with Harald and War of Clans.Taking a deeper look into the other new bronzes:
- Tuirsearch attacker: Can have a max value of 7 in round 3. Does not appear to be OP for me, as all fractions including NG´s angry mob got a 4 provisions conditional 7 value card
- An Craite Raider: Has due to his Veteran Feature a maximum base value of 6 in round 3 and can damage 2 if not stopped. So his maximum value is 8, which sounds reasonable for a 5 p. To my mind the other fractions got comparable cards (NG new aristocrat with much higher value potential, NR Kerack City Guard with much higher value potential, ST Hamadryade with much higher value potential). Only MO and SY didn´t get comparable or better 5 p units. I did not even include An Craite Raider into my deck, because I prefer An-Craite Caller as my only 5 p card)
One of the issues here is how many cards can deal the required points of damage to remove it?- Drummond Berserker: Decent card creating a value of 9 (1 dmg for 3 turns then base strength of 6) if not stopped. Nevertheless it´s value potential is decreased significantly if stopped (facing armour, destroyed earlier). I think his value is fair and the card is comparable to Alba Pikeman (less value potential but more flexible as not limited to Melee).
So your 5p Drummond berserker still trades favourably. 4 points of removal will cost a 4provision card. So you are getting an expected range of 6-9 for 5p (+bait)
Seems overpowered to me, considering what was previously the best bronze in the game can now be one shotted by 4p NG Mage Infiltrator.
But I agree your value potential drops against armour.
Generally, I think designing OP cards takes far less thought than adding balanced ones. But, it is far more profitable...
(in the short term anyway)