RE: Thicc blood lust Grum, is Bloodlust OP?! (I think it is)

It's a great card for sure but far from invincible. One common counter in lower leagues is anything like serpent of eld where the dodge and speed will make grum just miss and never trigger his bloodlust.

Or any armor repair card like scavo hireling that will just put armor back onto the unit each round and negate a whole attack. The problem with grum is the high mana cost often leaves you few resources to deal with cards like that as you've already commit a lot just putting him in the field.

Godsends are kobold miner and serpentine spy as they are cheap and if you're lucky can kill a scavo before it ruins your day.

Good luck :)