Whipkeeper: damage_count is used without ever being declared.
Wound Reflection: I'm not sure how those interrogations work, so I'd have to check on it and get back to you later unless someone else knows off hand. However, that ability isn't going to do what the card says. It says each opponent loses life, not just the player whose turn it currently is, which is who TriggerPlayer() will be.
Wood Sage: Well, it's not
supposed to put them onto the battlefield lol. But assuming you meant it's not putting them in hand, you can't "Add" to a card. "Add" only works on filters. You need "if card:GetCardName() == S_LoadName() then"
Waxmane Baku: In the RTA in which you call "ChooseItems", you also need to call "effectController:SetItemCount(count)".
Wake the Dead: Int he RTA, you call both "EffectDC():Get_Targets(0)" and "EffectDC():Get_Targets(1)". There is nothing in target chest 1.