so might as well drop my thoughts into the discussion:
quovoja's summarized these different options pretty perfectly, and personally i'm leaning more into option 2. option 3 is just theorymon and likely causes too much collateral from non-PH mons no longer having access to moves, along with stuff like tera/ph mons with self-resistant STABs meaning that the core issue of them being unable to be worn down still exists.
option 1 also exists but i'd be more reluctant to do this - i was speaking to UT earlier about tera's presence in BH and how it differs from AAA, highlighting full EVs meaning defensive tera is generally less valuable (exception obviously being PH mons, namely caly/slaking) [though still is for stuff like imposter] and it doesn't currently seem oppressive on anything that isn't already broken like contrary etern and stuff. ph arceus doesn't seem as obscenely broken as to warrant banning the entirety of poison heal, though we could revisit this option if we ban caly/slaking and they do end up being like that.
option 2 is the main one then. where slaking's only set is poison heal, calyrex has a stupid amount of set variety to where poison heal is just one of many broken variants, and i think caly should be banned irrespective of poison heal (seriously, this mon has beads, adapt, normalize, pixilate and PH, all of which pressure stuff absurdly well and practically force ting-lu or scales/AV stuff like muk-a and meloetta on every team). slaking is mostly a problem because it can shut down anti-PH measures pretty easily, is incredibly hard to actually kill (even if you do force it out), can fairly reliably 1v1 imposter barring crits (made worse by tera), and also still has underused options like glance and v-create which will just make it more busted when these become more popular. both of these being banned would allow for much more flexibility and general meta diversity. even if we get core enforcer back in DLC, personally i just wouldn't be bothered to free calyrex again, since this is just going to cause trouble and overcentralization in any meta it's free in.
also put drum and contrary in a spliff please and thank you
quovoja's summarized these different options pretty perfectly, and personally i'm leaning more into option 2. option 3 is just theorymon and likely causes too much collateral from non-PH mons no longer having access to moves, along with stuff like tera/ph mons with self-resistant STABs meaning that the core issue of them being unable to be worn down still exists.
option 1 also exists but i'd be more reluctant to do this - i was speaking to UT earlier about tera's presence in BH and how it differs from AAA, highlighting full EVs meaning defensive tera is generally less valuable (exception obviously being PH mons, namely caly/slaking) [though still is for stuff like imposter] and it doesn't currently seem oppressive on anything that isn't already broken like contrary etern and stuff. ph arceus doesn't seem as obscenely broken as to warrant banning the entirety of poison heal, though we could revisit this option if we ban caly/slaking and they do end up being like that.
option 2 is the main one then. where slaking's only set is poison heal, calyrex has a stupid amount of set variety to where poison heal is just one of many broken variants, and i think caly should be banned irrespective of poison heal (seriously, this mon has beads, adapt, normalize, pixilate and PH, all of which pressure stuff absurdly well and practically force ting-lu or scales/AV stuff like muk-a and meloetta on every team). slaking is mostly a problem because it can shut down anti-PH measures pretty easily, is incredibly hard to actually kill (even if you do force it out), can fairly reliably 1v1 imposter barring crits (made worse by tera), and also still has underused options like glance and v-create which will just make it more busted when these become more popular. both of these being banned would allow for much more flexibility and general meta diversity. even if we get core enforcer back in DLC, personally i just wouldn't be bothered to free calyrex again, since this is just going to cause trouble and overcentralization in any meta it's free in.
also put drum and contrary in a spliff please and thank you