1995 mankey pokemon card value Brock's (gym1-67) [Psychic] x2 Retreat Cost Mankey 1st Edition (55) 2000

Essentially, an LV

The work that has gone into designing these cards is phenomenal

For 1 Darkness energy, Darkness Howl does 20 damage to every Pokmon in play (both yours and your opponents), excluding any Darkness Pokmon

Besides the obvious combo deck with Saheeli Rai, which looks to be just as good as you think it may be, Felidar Guardian may also be a welcome addition to a Panharmonicon deck

Viscerid Drone (Ice Age/Alliances) For all this talk of curve, first turn of creature threshold, and the such, I've not really mentioned Ice Age/Alliances

You are locking yourself down somewhat early for fairly little payoff