Quickie, does valflames res ploy 2 effect stack with the new res ploy seal or attack ploy?

For debuffs on the highest is applied, so Valflame and res ploy 3 Sacred Seal will only apply once for a -5 res. Wont add to -9

Any visible debuffs and buffs can't stack only spurs can stack(At the moment there are no spur like debuffs so debuffs can't stack) and only the higher level skill will take effect (Valflame with either atk ploy seal. the effect of atk ploy will take effect and not the atk/res ploy on valflame but the res part of valflame will still take effect)

No
Only the highest debuff applies