They are basicly unused, at least in battle.
Its a shame, its very effective anti-cav is used right.
I think they are prone to change. Make them 1-slot. If thats too much of a buff, increase weight as well.
Edit: Amount of cav is crazy and/or the matchmaker is putting all cav on same team. Either way, the opposite team is still not using stakes, despite loss after loss to cav. The stakes is too big and heavy. Noone cba using them.