u want simple deck with just powerful cards on their own, not cards that are weak on their own and are only strong when they have synergy. The handlock deck has not much value in the hands of the bot because it just plays without a game plan. The owls, BGH , all has low toughness and will trade negatively and get low value. And the watchers are totally useless if the bot doesnt know how to play them first then sunfury/argus/owl silence it later
U should use cards that are strong on their own ie. dont require any brainpower to make them work like scarlet crusader, harvest golem, chillwind yeti,senjin shieldmasta, argent commander, boulderfist ogre, ragnaros, ysaera etc. that guarantees 2 for 1 value. I recommend a murloc rush deck for warlock, i just got my golden portrait with it and highest rank i got was rank 8 with silverfish rush. Win rates hovers around 40%-60%
2x grimscale oracle
2x leper gnome
2x murloc raider
2x murloc tidecaller
2x voidwalker
2x young priestess
2x bluegill warrior
2x knife juggler
2x murloc tidehunter
2x coldlight seer
2x murloc warleader
2x raid leader
1x defender of argus
2x doomguard
1x old Murk-eye
2x hellfire