name: Reverse
card_text: Until the End Phase, all effects that add or subtract ATK or DEF are reversed. (Additions now subtract, and subtractions now add, instead. Multiplications and divisions, including halving/doubling, are not affected.)
lua: local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	e1:SetOperation(s.activate)
  	c:RegisterEffect(e1)
  end
  function s.activate(e, tp, eg, ep, ev, re, r, rp)
  	local e1 = Effect.CreateEffect(e:GetHandler())
  	e1:SetType(EFFECT_TYPE_FIELD)
  	e1:SetCode(EFFECT_REVERSE_UPDATE)
  	e1:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
  	e1:SetReset(RESET_PHASE + PHASE_END)
  	e1:SetTargetRange(LOCATION_MZONE, LOCATION_MZONE)
  	Duel.RegisterEffect(e1, tp)
  end
  
  
source_text: Reverse
  Until the End Phase, all effects that add or subtract ATK or DEF are reversed. (Additions now subtract, and subtractions now add, instead. Multiplications and divisions, including halving/doubling, are not affected.)
target_text: -- Reverse
  local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	e1:SetOperation(s.activate)
  	c:RegisterEffect(e1)
  end
  function s.activate(e, tp, eg, ep, ev, re, r, rp)
  	local e1 = Effect.CreateEffect(e:GetHandler())
  	e1:SetType(EFFECT_TYPE_FIELD)
  	e1:SetCode(EFFECT_REVERSE_UPDATE)
  	e1:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
  	e1:SetReset(RESET_PHASE + PHASE_END)
  	e1:SetTargetRange(LOCATION_MZONE, LOCATION_MZONE)
  	Duel.RegisterEffect(e1, tp)
  end
  
  